In the wake of the Covid-19 pandemic, challenges with adolescent mental health are on the rise, making the need for spaces where teens share their emotions and experiences all the more vital. This single-case study explores the impact of writing on one young woman's (Celia) mental health during Girl Power, a gender empowerment poetry writing workshop for adolescent girls. Celia's poems, interviews, and discussions illustrate the complexity of the intersections of mental health with friendship, body image, and identity as a girl, revealing the benefits of a supportive community for writing for self and catharsis. This article concludes with practical implications for the healing power of writing both in and out of the classroom.