Welcome roadie, I'm new here too and can relate to your episodes and the way you must feel right now. I've managed to make a complete fool of myself at work functions on more than one occasion, the only reason there haven't been more incidents is because my workplaces generally haven't been big on socializing!
I've had so much shame, guilt and swore i'd never get that drunk again, only to repeat it.
I have no ability to moderate once I'm on a roll. You're doing the right thing....hang in there!