The past is locked in
The past has already happened. Whatever you did, it’s already in the record books and indelible for all time. There’s nothing anyone can do to change it. It doesn’t matter if it was when you were five years old, or five seconds ago. It’s done.
Every second you spend dwelling on it and wishing it were different is wasted. The best you can do is learn from it, and do it differently next time.
Learn to say “I wish that had happened differently. But now that I’m here, how can I make the best of it?”