Don't let modern society's Dr. Phil brainwashing keep you from doing what needs to be done, man. You didn't initiate, you defended yourself, right?
Don't justify defending yourself. Your drinking and anger issues may be a problem, but I see nothing wrong with a little BFT now and then.
It keeps people in line. If the guy was stupid enough to start a fight he couldn't finish, you educated him.
...
How did society get to the point where a bar brawl is somehow a big scary sign of psychological problems? Amazing.
A man should be comfortable with the use of force... so he knows how and when to apply it and what to do when he is a target.
I'm saddened that this generation is okay with being bullied and features a lotta don't-worry-somebody-else-will-fix-that.
As long as everybody goes home in one piece... there is nothing inherently wrong about the field expedient physical method.