Realistically, the real answers to this question are:

• Get a lucky job prospect in your 30s or 40s, finally have mental space to do things, spend the next 50 years trying out all sorts of fun ways to answer this question.
• Work shitty jobs forever, get used to it, continue “quiet quitting” for your entire career so you can spend some energy trying out ways to answer this question.
• Work shitty jobs forever, become bitter and cynical, never do anything fun because you don’t have the mental space for it, die.