The shame and guilt suck. It's why I'm trying to get sober and am at 23 days now.
I think just take a deep breath and realize that you aren't the center of the universe and while maybe you were a bit annoying to be around last night, most people probably already forgot about it and are worrying about their own lives.
With that said, before I pick up a drink, I want to remind myself how crappy the shame/embarassment/guilt feel the next day. It's just not worth drinking if that's how I'll feel the next day.
You might feel like crap right now. But you don't ever have to feel like this again if you don't pick up the booze. It's kind of nice knowing that! It's hard to think of life never drinking again. But think of never feeling hungover and ashamed again? Sign me up!