Feel respected, confident and in control of your voice in 30 days

The 30-Day Assertiveness Challenge is a simple, 5-minute-a-day guided programme for current and aspiring women leaders in STEM.

Unlike courses that leave you on your own, you’ll join a driven cohort of women who understand your journey.

Together, you’ll learn science-backed strategies to own your voice, articulate your ideas with conviction, and handle workplace challenges head-on.

No more feeling overlooked or unheard. It’s time to stand tall, command respect, and be fully recognised for your impact.

Click here to join the July 2025 Cohort

Have you been meaning to strengthen your confidence and assertiveness?

But everyday demands — like settling into a new job or caring for a little one — keep pushing it to the back burner?

Have you tried online courses and self-help books, only to feel lost when it comes to actually using what you learn?

Do their tips feel forced or mismatched with your personality, leaving you unsure how to make them stick?

Are you frustrated that, despite trying every strategy under the sun, you still aren’t heard, respected, or recognised at work?

Is the struggle for visibility and advancement starting to wear you out?

Here is what our students are saying...

Andrea Stefkova

Head of Digital Products, Water Industry

The 30-Day Assertiveness Challenge helped me recognise that there was nothing wrong with me — there were just unwritten rules I needed to learn. Now I have a toolkit of actionable approaches I use every day, and I see my true value.

Radka LopezGarcia

Digital Marketing Manager, Photonics Industry

The 30-Day Assertiveness Challenge gave me practical techniques to identify and overcome the subtle behaviours that were holding me back— despite being an experienced professional with decades in the industry.

The unspoken struggles every woman in STEM knows:

Being interrupted
Feeling like a fraud
Isolated on your own
Always proving yourself
Hearing subtle comments
Others stealing your credit
“Not ready yet” for promotions.

If you’re reading this, you’re probably tired of these challenges weighing you down. You know that with more confidence and assertiveness, you’d finally break through these barriers. That’s why you’re here.

Whether your goal is to land that Senior leadership role, become known as the technical expert, shape high-impact projects, or even aim for a Board seat—being heard, respected, and valued has been on your mind for a long time.

The support and accountability you have been missing.

Maybe you’ve tried becoming more confident before, but everyday pressures drained your energy and motivation. It’s not your ability — it’s that you’ve been doing it alone.

The 30-Day Assertiveness Challenge changes that. You’ll join a supportive group of women in STEM who share your goal: to speak up confidently, earn respect, and finally get the recognition you deserve.

This tight-knit community keeps you encouraged, engaged, and committed — no more slipping through the cracks. It’s the missing piece that helps you create true, lasting change.

Demolish your self-doubts

There are 3 major killers of confidence.

#1: Negative Self-Talk

Too many smart, capable women believe that being hard on themselves is a path to improvement. It isn’t. What you tell yourself shapes who you become. In this challenge, you’ll learn how to reframe the way you describe yourself—recognising the value in your voice instead of tearing it down.

#2: Impostor Feelings

If you’ve ever thought you’re just “lucky” to be where you are, you’re not alone. Many women leaders feel this way, but it slowly eats away at your confidence. You’ll learn how to label these thoughts, understand their origins, and reduce their grip on you.

#3: Fear of the Unknown

Stepping into new situations often triggers your brain’s self-preservation mode. Maybe you fear failure, judgment, or simply feeling out of place. Together, we’ll unpack these fears and transform them into clearer, more helpful statements that guide you forward — rather than hold you back.

Stop accidentally undermining your credibility

The biggest mistake women leaders in STEM make?

Softening their language to be liked or fit in — especially when you’re the only woman in the room.

But here’s the truth: Using phrases like “maybe,” “I think,” or “sorry” too often won’t earn you respect.

It sends the message that you’re unsure of your expertise. Your colleagues need you to speak with clarity and conviction. Without that, they can’t fully trust your insights or recognise your leadership.

During this challenge, you’ll learn exactly which words to avoid and what to say instead. You’ll find the perfect balance — communicating clearly, confidently, and assertively, without coming across as aggressive.

Click here to join the July 2025 Cohort

Stop holding back. Start speaking up.

Let’s be honest.

You’ve known for a while that you need to speak up more at work. Meanwhile, you’ve watched others — often the men around you — climb the ladder, earning promotions and respect, while you remain overlooked, even though you know you have what it takes.

Why the delay? Maybe you’re unsure how to start, or you’ve tried advice that never felt right. Or perhaps you doubt you can really change.

The 30-Day Assertiveness Challenge helps you break through these barriers. You’ll learn to replace hesitation with confidence, silence with assertion. Once you find your voice, there’s no going back.

Be seen, heard, and respected as the leader you are

Working extra hours and hoping for recognition isn’t a strategy — it’s a dead end.

You need real tools — science-backed methods to build leadership presence, speak assertively, and project genuine confidence. This isn’t trial and error; these are proven techniques you’ll understand and apply immediately.

With just 5 minutes a day, the 30-Day Assertiveness Challenge teaches you how to communicate with authority and clarity. By the end, you’ll have a powerful voice that naturally earns respect.

Click here to join the July 2025 cohort

Get promoted. Build authority. Lead strategic projects. Secure that Senior role.

Confidence and assertiveness put you on the radar for bigger opportunities and roles you once watched from the sidelines.

Whatever your next career milestone is, this 30-Day Assertiveness Challenge will help you reach it—faster and with greater ease.

Ready to finally become more confident, assertive and influential at work?

Here’s a full overview of everything you’re going to get instant access to once you come onboard the 30 day challenge:

The Assertiveness Challenge Curriculum

(All accessible on your mobile for easy, on-the-go learning)

A Science-Backed System for Busy Women in STEM

In just 5 minutes a day, for 30 days*, you’ll gain tools you can use right away at work. Each lesson is designed to fit your personality, your role, and your goals.

What You’ll Learn:

Overcome Self-Doubt & Impostor Feelings: Understand why they happen and how to counter them, so you can finally trust your own expertise.
Use Language That Commands Respect: Get word-for-word phrases and frameworks to help you speak with clarity and confidence.
Handle Challenging Conversations Assertively: Learn how to respond—on the spot—to interruptions, tough feedback, and difficult colleagues.
Project Leadership Presence: Discover subtle shifts in tone, body language, and messaging that position you as a trusted authority.

Plus:

Downloadable templates, real-life examples, and practice exercises.
Smart tips for fitting these lessons into your busy day, so you can build assertiveness without adding stress.

Special note for July 2025: We are changing the format - alternating 1 week of learning, 1 week break - to give you the chance to reflect and apply what you learnt. The cohort will run July-August.

The Challenge Community

Grow Stronger Together

You don’t have to navigate this journey alone. Our private Slack group is where you’ll connect with other women in STEM who face the same challenges you do — and understand them on a personal level.

What You Get Inside the Community:

Peer Support & Conversation: Exchange ideas, ask questions, and encourage each other every step of the way.
Accountability Partner Matching: Pair up with another woman in a similar role so you can both stay motivated and on track.
Live Events & Celebrations: Kick off together, celebrate your progress at the end, and join special sessions to deepen your learning.
Lifetime Access: Keep benefiting from the network, resources, and friendships you build long after the 30 days are over.

Being a woman in STEM can feel isolating, but it doesn’t have to. Here, you’ll find a supportive community that “gets it” and is committed to lifting each other up.

The Real-World Assertiveness Simulator

Practice in a Safe Space

Knowing the theory is one thing—applying it under pressure is another. Our AI-powered chatbot and scenario library let you test out what you’ve learned before you ever step into a real meeting or conversation.

What You’ll Get:

AI-Powered Role-Play: Practice responding to tough questions, pushback, or interruptions. Hone your skills in a supportive, risk-free environment.
Library of Real-World Situations: Access a collection of everyday workplace challenges so you can learn how to assert yourself in the exact scenarios you face.
4 Weekly Live Group Sessions: Bring your experiences to the table. Get feedback, discuss stumbling blocks, and walk away with actionable tips from coaches and peers.

This is where your skills stop being “theoretical” and start feeling natural. It’s how you’ll build true confidence—one real-life scenario at a time.

The Assertiveness Challenge Bonuses!

[BONUS #1] Stress-Free Time Mastery Blueprint (£129 Value)

A tried-and-tested system used by high-achieving professionals to reduce overwhelm and free up to an extra hour every day.
Access exclusive strategies from Christina’s private coaching clients.
Use your extra time to build and reinforce your new assertive communication skills.

[BONUS #2] The Mastery Retention System (£89 Value)

Keep your growth momentum alive long after the 30 days are up
Post-program success system with actionable strategies, real-life examples, and reflection tools to keep your assertiveness skills sharp
Ensure your assertiveness and confidence become a permanent part of your professional toolkit

[BONUS #3] The Elite Nerves-Calming Ritual (£129 Value)

Learn a proven 5-minute ritual used by elite athletes, world-class musicians, and top executives to calm nerves before high-stakes situations.
Perfect for presentations, interviews, or any anxiety-inducing event where you need to show up as your most confident self.
Comes with an easy-to-follow audio guide you can use anytime, anywhere.

[BONUS #4] Strategic Networking Accelerator (£139 Value)

A step-by-step system to master strategic networking and build powerful connections.
Developed through insights from 10+ mentors and tried and tested by Christina’s private coaching clients.
Access exclusive conversation templates and ready-made scripts to help you break the ice and make meaningful connections fast.

[BONUS #5] The Assertive Communication Vault (£139 Value)

20+ ready-to-use templates and scripts for assertive emails, decisive meetings, and tough workplace conversations.
Benefit from Christina’s personal experience, distilled into practical language frameworks that work in technical and male-dominated environments.

I have been there myself...

I know what it’s like to walk into a room where you’re the only woman at the table—where your contributions are overlooked, your ideas undervalued, and your voice pushed into the background. For years, I navigated male-dominated environments—manufacturing conglomerates, tech startups, and scaling businesses— often feeling as though I had to fight for recognition.

I tried to explain away my quietness: “I’m just introverted,” I told myself. But one day, my manager’s words cut through the noise: “Your contributions are brilliant, if only we heard your voice more.” That was the wake-up call I needed. My lack of assertiveness wasn’t just my problem—it was holding my entire career back.

Determined to make a change, I invested heavily in my own growth. I worked with executive coaches, completed Harvard Business School training, and joined Chief—a community of senior women leaders who had mastered these very challenges. Almost immediately, things shifted. When I stepped into a VP role, I finally owned my expertise. I spoke up, my insights gained traction, and I stopped feeling like I had to prove myself every single day.

This newfound confidence followed me when I launched my own business, advising STEM companies on customer insights. Negotiating with clients, setting fair prices, and establishing my authority came naturally because I’d built a foundation of assertiveness. The result? Paying clients, a healthy pipeline, and no more apologising for my worth.

That’s why I created the 30-Day Assertiveness Challenge.

After years of piecing together strategies, refining my communication, and testing what truly works, I wanted to share a streamlined path for other women in STEM. You don’t have to spend years uncovering what it took me so long to learn. I’ve distilled it all into a straightforward, science-backed system that fits into even the busiest schedule.

This isn’t just another course—it’s a transformation designed for women who deserve to be heard, respected, and recognised. I know these tools work because I’ve lived them, tested them, and proven their value in the real world. Now, I’m here to guide you through a 30-day journey that will change how you see yourself, how you show up at work, and ultimately, how far you can go.

Join the 30-Day Assertiveness Challenge July 2025 Cohort

Here's everything you'll get in the 30-Day Assertiveness Challenge

Core Curriculum (30 x 5-Minute Lessons)

Daily, Science-Based Insights: Each day, learn a quick, research-backed strategy for building confidence and asserting yourself—tailored specifically to women in STEM.
Actionable Tools: Get practical frameworks, language tips, and exercises that you can implement immediately at work.

Real-World Practice & Live Support

AI-Powered Practice Simulator: Hone your assertiveness skills by role-playing challenging scenarios before they happen in real life.
4 Live Group Sessions: Bring your personal roadblocks and tough conversations to these guided sessions and get real-time advice.

Community & Ongoing Accountability

Private Slack Community: Connect with other high-achieving women facing the same hurdles. Share insights, celebrate wins, and learn from each other.
Accountability Partner Matching: Get paired with a like-minded peer to keep each other motivated and on track—before, during, and after the challenge.
Lifetime Access: Revisit the lessons, community, and resources whenever you need a refresher.

5 Premium Bonuses (Total Value: £625)

Stress-Free Time Mastery Blueprint (£129 Value)

Free up to an extra hour a day with proven, stress-reducing strategies so you can focus on your growth.
The Mastery Retention System (£89 Value)

Maintain your assertiveness momentum long after the challenge with ongoing success strategies and reflection tools.
The Elite Nerves-Calming Ritual (£129 Value)

Use a simple, 5-minute ritual with an audio guide to calm nerves and perform at your best in high-pressure moments.
Strategic Networking Accelerator (£139 Value)

Build meaningful professional connections, with step-by-step methods and conversation templates drawn from top mentors.
The Assertive Communication Vault (£139 Value)

Access 20+ ready-to-use scripts for emails, meetings, and tough conversations—crafted from a decade of experience in STEM.

Our Promise:

Complete the 30-day challenge, and if you don’t feel more assertive, we’ll invite you to join the next cohort for free. That’s how confident we are that this programme works.