What should you do about it?? Simply, let it go.

The thing that you did and regret is done, there is not one person on this forum who has never done at least one thing they wish they could take back, I have several. Doing regrettable things is part of being a person, we all do it. The thing is that it's over, there is nothing you can do to change anything that happened.

What you need to dobis just let it go, laugh about it, cry about it, whatever you need to do to move past it. There is no reason for a past mistake to control your today