The ambition that built your career shouldn't be the thing that breaks you
You’ve built an impressive life. You deliver, you perform and you rise to every demand. Yet beneath the achievement is a quiet truth many high performers recognise: the version of success you’ve been living is no longer sustainable. If you feel stretched, tired or unseen inside your own life, you are not alone. Author Fleur Marks was a relentless overachiever until a health crisis forced her to confront the cost of this pace. What followed was a radical reset of how she lived, led and defined her worth.
This book is that reset. It doesn’t ask you to reduce your ambition. It offers a new way to pursue it, without losing yourself in the process. You'll uncover the beliefs that drive overachievement, neutralise unhelpful perfectionism and build a healthier path to impact, influence and fulfilment.
- Name what’s breaking you: Recognise the invisible forces driving you to the edge, and understand why everything that made you successful is now quietly tearing you down.
- Reset your mindset from the inside out: Master the three shifts that change everything: say enough already, drop the masks, and loosen your grip.
- Redefine success so it includes you: Stop chasing more at the cost of yourself, and create your own reimagined ambition.
- Lead with impact: Discover how to show up intentionally, set brave boundaries and create more impact by focusing on what matters.
- Make it stick with your reset blueprint: Implement the practices, rituals and systems that turn sustainable high performance into your new way of life.
You don't have to wait for permission to live and lead differently. A different way becomes possible the moment you choose it. Start your new beginning right now, wherever you are, with The Overachiever’s Reset as your roadmap.
Table of Contents:
About Fleur Marks xv
Introduction: I thought I was superwoman … my body had other plans xvii
Part I The overachiever’s cycle 1
1 The impossible balancing act — Balancing on empty and calling it success 3
2 Cycle stage 1: The five beliefs running your life — Understanding the core beliefs driving your overachievement 21
3 Cycle stage 2: When beliefs become patterns — How the beliefs transform into daily behaviours 33
4 Cycle stage 3: The silent costs — What got you here may be silently breaking you 53
Part II The inner reset: Redefining success inside out 69
5 Mindset reset #1: Enough already — You were always enough — the achievement just made it harder to see 71
6 Mindset reset #2: Drop the masks — The world doesn’t need another perfect performance — it needs you 95
7 Mindset reset #3: Loosen your grip — Your power lives in what you choose, not what you control 127
Part III The lived reset 155
8 Pillar one: Success your way — From proving to purpose. Reimaging success so it includes you. Legacy beyond the ladder 159
9 Pillar two: Lead with impact — How to create real impact without losing yourself in the process 185
10 Pillar three: Excellence without exhaustion — Discovering that working smarter isn’t just better than working harder, it’s the only way to sustain brilliance 211
Conclusion: Still in the waiting room living fully 235
The Overachiever’s Mantra 241
The journey doesn’t end here 243
Further resources 245
Acknowledgements 247
References 251
About the Author :
FLEUR MARKS is a globally recognised leadership trainer, strategist and speaker who helps leaders in tech, finance, media and professional services succeed sustainably. After 20 years as an agency leader delivering brilliant work while breaking under impossible standards, crisis forced her to rebuild. Now she helps high performers master what she learned the hard way: achieving excellence without sacrificing everything they love.
Review :
I’ve known Fleur since our Ogilvy days, and I consistently saw her perform at an extraordinary level, delivering outstanding results even when the stakes were sky-high. Reconnecting recently, it was truly inspiring to witness how she’s channelled that intensity, transforming it into a powerful engine for sustainable impact. Her new book, The Overachiever’s Reset, is precisely what so many leaders need: a practical guide to building truly fulfilling careers without the constant threat of self-sacrifice. This isn’t just a book; it’s a critical conversation our industry has been waiting for.
—Marie-Claire Barker, Global Chief People Officer, WPP
I worked with Fleur on the Qantas rebrand whilst she was navigating treatment — and she showed up, gave it everything, and delivered like the professional she is. It blew me away. When she shared her story with my marketing team at the time, it changed how they thought about leadership and success. The Overachiever’s Reset is what every leader needs to build sustainable teams and businesses that actually last.
—Stephanie Tully, Chief Executive Officer, Jetstar
I heard Fleur speak over a decade ago and her story stayed with me — then our paths crossed again recently and I watched how she’d transformed through such adversity to create real impact. The Overachiever’s Reset is the book I wish every high performer drowning under unrelenting standards could read.
—Suzana Ristevski, CMO Google Australia & NZ
I’ve been that overachiever quietly breaking under impossible self-imposed standards — and I’ve watched brilliant founders do the same. Fleur’s story is the wake-upcall we need. This isn’t another hustle-harder playbook. It’s raw, real and gives you the sustainable blueprint to achieve your wildest ambitions without sacrificing yourself. Read this before you break.
—Lisa Messenger, Author, Founder and Lifestyle Entrepreneur
Stop performing your worthiness through endless achievement —you’re already enough. Fleur gives you permission to reclaim yourself, take up space, and build success that doesn’t cost you everything. This book is the wake-upcall every overachiever needs before they break.
—Erika Cramer, The Queen of Confidence, Author, Speaker, Creator of The Confidence Chronicles Podcast, Coach and Psychotherapist
Fleur and I share a mission: helping leaders break free from the limiting beliefs that keep them exhausted and stuck. The Overachiever’s Reset tackles what awareness alone can’t solve – giving leaders the practical tools to interrupt unconscious patterns and lead from a place of integrity and authenticity. This is the bridge so many self-aware leaders have been waiting for.
—Michael Bunting, Speaker, Author, Researcher
A beautifully honest and powerful book for anyone stuck in the relentless cycle of doing more and feeling less. Fleur Marks offers a compassionate wake-upcall and a roadmap to success that no longer comes at the cost of your health, relationships or sense of self. Essential reading for modern high performers.
—Sarah Grynberg, Founder of Greatness Productions, Speaker, Author & Creator of A Life Of Greatness Podcast
