You can dwell on it and really punish yourself, that's fairly normal, or you can let it go. With practice it gets easier, but it's not the end of the world man. It certainly takes time and detachment.
I did the same things and it really doesn't help. One it makes them run from you. Two it makes you act like a lunatic.
Just take some time, let it go and think on other thoughts, get busy, do something - workout or fold clothes, or put on a movie you like. Maybe write it out in a journal how you are feeling.
It'll get better bud. Take care of yourself. Be kind to yourself.
