Adolescence, transition usually constructive from the world of childhood to adult, is sometimes the origin of weakness because of puberty changes and revival of sex drives emergence previously sleepy. This movement is not always bearer of desirable vitality by confronting certain subjects to an impossible maturation, opening the prospect of suicide as an issue to this evolutionary impasse. An original light of what Freud has before developed about underlying mechanisms of some particular suicide attempts is proposed throughout the history of a patient whose repetition of suicide attempts inscribes adolescence in a tension between a mortified process aiming at her destruction and an attempt of survival in the ultimate appropriation of herself.