"Good in my head, Good in my life!" is a Public Health program, which aims to contribute to strengthening the well-being of high school students in 6 schools in the Grand Est, from September 2024 to July 2025. This program is intended for voluntary institutions, who wish to commit to one year. It targets high school students and a pair of staff in each of the beneficiary high schools. In each high school, this program consists of an expression of needs, a theater-debate performance, training of volunteer staff on psychosocial skills, then five two-hour sessions with high school students, co-facilitated with trained staff, on the psychosocial skills of students. The sessions will focus in particular on: - Positive self-assessment, - Understanding, identification, regulation of emotions, - Social resources. Internal and external communication tools are offered to the staff of the beneficiary high schools, such as a guide for school referents, posters.