Did you ever do anything in your youth that you lived to regret? Do you think you ultimately learned from it or do you wish you could go back in time and do it over?
In my YOUTH? I've done things in my adult years I've lived to regret.
I've learned from most of them, but I'd still want to go back and do a lot of them over. Unless that would mean I'd forget the lesson, and therefore go ahead and do them again. Infinite loop time!