I'm thinking you want to go somewhere warm due to this weather. I would think a couple of places in the Caribbean, Brazil or Mexico can do you some good. Not sure how crazy it gets for the nightlife but you'll love the weather.
Im not sure how much money you have available, but... Amsterdam. Ios. Mykonos. Madrid. Barcelona. Ibiza. Belgrade (yes, Belgrade). Budapest. But all those places are having a super cold winter too, haha.
This, also the Greek islands are fantastic as well
I'd go to an all inclusive in the DR. Punta Cana. There are some very good places. Haven't been in a while because I am married and in a long term relationship but when I used to go around the Thanksgiving break there used to be girls my age.