Hi Rio, as you are an adult, I respect your decision. I don't necessarily agree with it (in fact I don't agree with it) but I will respect it. Going forward I can only offer this. YOUR SOBRIETY is more important than anyone else or any one event. And if others do no like that or do not respect that....eff em. Its your life. You caved this time, and I get it. Just don't do it again. Don't even give them the opportunity to guilt you into anything. Just stay strong in your resolve. I've had to do it, its not nice, but it is necessary. I've said these exact words to my immediate family "I'm not going, so please respect my decision and don't bring it up again. I-am-not-going. You guys will be just fine without me."
The first time is hard, but it gets easier.