identity crisis

1. A psychosocial state or condition of disorientation and role confusion occurring especially in adolescents as a result of conflicting internal and external experiences, pressures, and expectations and often producing acute anxiety.
2. An analogous state of confusion occurring in a social structure, such as an institution or a corporation.

A psychosocial state or condition of disorientation and role confusion occurring especially in adolescents as a result of conflicting pressures and expectations and often producing acute anxiety.

The noun has one meaning:

Meaning #1: distress and disorientation (especially in adolescence) resulting from conflicting pressures and uncertainty about and one's self and one's role in society