If you could, would you?

Go back and relive any part of your life? Fix anything, change anything or just relive that part of your life?

I would relive my junior year of high school. I met this person and when I gave them my phone number, I somehow knew oneday I would regret it. I do alot. If I could go back I would put a sign on my door that says please don't knock because what you're about to ask is not allowed. LOL

I would probably make sure I meet some famous person, or do start my business while I'm in high school.

How about it. What would you do? Would you just leave it alone or would you go back into time?