Self-confidence is an attribute that makes life more full, more quality, more nuanced. Being a very complex structure, in different age period self-confidence form being fed by different Egosetting. The experimental study involving preadolescents, adolescents and young adults revealed that adolescents have a higher level of self-confidence. Self-confidence in preadolescent is based on self acceptance, in adolescence – on the self-esteem, at the young people the self-interest and self-sympathy are sources of self-confidence.