I think I'm probably a better sport. You tend to really just freak when you lose. You have a real hard time with it.
I don't see any harm in letting whatever comes out come out of you, even if it's sort of weird, or dark, or painful, or too embarrassing, or whatever. I feel like you might as well get it down for yourself. It can't do anything but help you get to where you want to be by recognizing the thoughts that you're having.