I'm Retired and I don't think I ever knew what I wanted to do when I grew up. I became a Electronics Technician in the Navy later became an Electrical Engineer and still didn't know what I wanted to do. I guess that is because I never really had a job I truly enjoyed.

I think I should have done something in the Automotive industry because Cars have alway been my hobby and I love working with Rod's and antique cars.

I would say what ever you decide to do, love your job, because if you dont it can rob you of health and wellbeing.

I don't know if they still have the peace corp or if there are volunteer ORG's that will allow you to see some of the world before you have to decide. It will require you having some college credit but the Air force or Navy will give you an opportunity to grow some and also give you an education.