For me the best way for finding out what job I wanted out of highschool was turning 27. Out of highschool, I thought I wanted to become a teacher. That didn’t work out, so I did some years (12) of various blue collar jobs, got married, had children. In the meantime I kept searching for my passion. Eventually I found it in programming. I spend a good 4 years tinkering with it until I eventually decided to go back to school. Now I’m finally loving my job and I’m again back in school trying to get my master.