When I read the first sentence of your question, I find myself thinking that maybe there’s nothing I would change at all. I don’t think every mistake needs to be justified by the good that came after it, but I also don’t think I can separate the person I am today from the things I wish I had done differently. So if I could go back, perhaps I would. But if I could only change one thing, I think I’d rather leave the past as it is and learn to make peace with it instead.