I wouldn't change much either...more of the same I think. I did travel a fair bit, I went out a lot & basically had a lot of fun!! I've never been very career focussed, so I'm happy where I am. I'd like to have done better in my degree, but only because I know I could have if it weren't for all the drinking & dancing &...er...whatnot
Mostly I think I'd just want to slap myself & try to convince myself I was thin...why the hell did I think I was fat! I could have had a good few years feeling good about myself. I'd also find a cure for cancer, & a time machine & cure Mum. Um...and learnt to ski.