If you change one thing, a whole lot of other things will change. If you change a bad thing that happened, you might be a weaker person. If you change one bad thing, you might be more judgmental. And so on. No matter how bad a choice was, you did gain something good. Even if its something small and something you don't even realize. there are many things I wish never happened, but I know for certain if they didn't I wouldn't have all the things I have learned now. so no.