Live in the same place I was born.
I like this question!
I think I would stop copying other people and focus on myself. That way i wouldve got to where i am a lot quicker
Start going to the gym much younger.
Well 50% is Genetic so I guess I would be still be schizophrenic. But if I could change one thing and presuming I knew everything about me for the next 20 years or so I'd ask myself how do I know all this stuff about myself? Am I mad well yes I am but amazing powers of future knowledge would also be mad. So I would ask everyone else on this thread apart, from you're mad - how come you're still wasting time on TSR?
I wouldnt have copied everyone else as much and made my own decisions a bit more when i was at school.
I would have made better job choices as well.