Any Idea’s?

I have attempted suicide and other crazy things and been locked up multiple times. These things happened when I was still a minor and they said if I tried again as an adult and got caught my punishment would be a lot worse. Basically I’m wondering if anyone knows how to prevent getting locked in a looney bin should I get caught and resuscitated? Also, my parents are still legally the people who get to choose what happens to me if I should be “mentally incapable”, and they would lock me in a state home indefinitely.