I would live the moment, don't care much about past and future.

I would try to be just myself in my entire life.

Isabella. If I have understood well ( sorry for my bad English), you have Aspergen Syndrome. If you have, you can't change anything, you just have to accept it, and try to live the best you can....people around you have to know, yes, it is easier if they do. I have a kid with Asperger, and it is difficult for him and for all us. Cheer up !

nothing, let will be what has been.

This is very personal, but I would really like that people had found out, or told them if I knew, that I had a depression and Asperger, instead of living with it for such a long time...

If I could go back in time, I would pay more attention to the society, travel more and learn more practical knowledge and skills, but not just learn thoeries and stay in a limited space.