Katherine Sharpe explores the existential questions facing millions who began taking antidepressants during adolescence, before they had established a baseline sense of who they were without medication. Drawing on interviews with peers who share this experience and her own history of starting Zoloft at eighteen, Sharpe examines how pharmaceutical intervention during identity formation creates unique uncertainties: Is my true self the depressed person or the medicated one? Would I have developed differently without these drugs? How do I know which feelings are authentically mine? She traces the dramatic expansion of antidepressant prescriptions to young people since Prozac's 1987 introduction, contextualizing individual experiences within broader shifts in psychiatric practice, pharmaceutical marketing, and cultural attitudes toward mental illness. Sharpe investigates why some people find a depression diagnosis liberating—locating their struggles in brain chemistry rather than character—while others experience the same explanation as threatening to their sense of agency and self-determination. The book addresses practical questions about going off medication and the anxiety of not knowing how one might function without it, while also engaging philosophical debates about authenticity, enhancement, and what we mean by mental health. Sharpe writes as a thoughtful participant-observer rather than an anti-psychiatry advocate, acknowledging medication's genuine benefits while insisting that the first generation raised on these drugs deserves space to articulate their complicated relationship with them.