No. It was a nightmare, sort of like it is now, but in a different way. I would only like to go back knowing what I know now as james_m said.
On a personal note, I would like to go back to 3-4 years ago, at least on a time machine to inform myself about the consequences of doing something. But it wasn't an exactly teenage age already. Although the earlier the better so it doesn't matter when, but starting from 3-4 years ago.
Sorry for my English.