Getting triggered around drunk people

Since high school I have had this weird trigger where I feel myself getting panick attacks or anxious around people when they are drunk. I am not at all sure what started this trigger exactly as I don't drink, my parents don't drink much, and I don't feel uncomfortable or anxious around family when they do drink around me.

Anyways, I have to be at a friend's boat party this friday where there will be an open bar and there's like a 100 guests. My weird anxiety surrounding this drunk people situation will not stop me from attending or anything but I am a little afraid that I might get a little anxious.

Does anyone have any advice for how I can soothe myself if I do feel anxious there (it's a boat party so it's not like I can leave the party easily to get air unfortunetly).