I think I've replied to a question like this before but here we go again!
If there was a way to change the outcome of situations I would definitely go back and time and change some things. Those things would be majorly avoid hurting ppl I love so I don't think it would change who I am, as hurting those people didn't make me who I am today, but I don't think you can fúck with the past/future no matter how hard you try :o
