Back then in Human Development course,
there is a stage of life where you get identity confusion,
some people will go travel to find back themselves,
it doesn't happen within timeframe of 13 - 19 years old,
there are a few times when this will happen in one's life,
for example like after graduation, or after working for a few years,
you starts to question about the purpose of life, and tidy back your rationale behind the meaning of life.

https://en.wikipedia.org/wiki/Erikson's_stages_of_psychosocial_development