If it were me, I likely wouldn't go if the temptation was too high and I was just going to be miserable. But I also understand not wanting to be left out of everything social. Having a bottle of water in my hand at all times has helped, Ive also said "im on a cleanse", or "im on medication that interacts with alcohol", or just a casual and simple, "no thanks, Im good for now!".
Hope you stay strong