Most of us have had something in our past that changed the course of our lives. That could be in a small way or in a huge way, for better or worse (even if at the time you don't see the better part).
Having the ability to screw up is what makes us human. It is what makes up who we are. The key is not to dwell on it but to learn and move on from it. You can not live in the past, you can not undo a mistake.
I started this post a month ago and just came back to finish it. But reading it again, I think that is all there is to be said.
LIFE IS A BITCH...... big fucking deal.