High-performing leaders are silently burning out, trapped by success metrics that reward exhaustion over wellbeing. Fleur Marks, a former executive who faced life-threatening illness brought on by relentless overachievement, offers a proven, relatable path to reset how we live and lead. Drawing on neuroscience, leadership practice, and lived experience, The Overachiever's Reset combines memoir, manifesto, and toolkit into a transformational guide. It offers a clearly structured three-part framework that helps readers replace burnout with sustainable brilliance. This is not a call to slow down, but a blueprint for high-impact leadership that includes your health, joy, and self.