I have to go to a pool party tonight

I'm supposed to go to a pool party tonight that my boyfriends friend is hosting and there's gonna be so many people there and I'm kinda panicking. Thankfully the weather (I don't think) is hot enough to actually go in to the pool so I can keep my dress on. Honestly I feel like if I went swimming I wouldn't even be surprised if I heard someone yell "THAR SHE BLOWS!!!" Ugh I just wish I could do social things and enjoy them like a normal person lol fml