23, Italian, Erasmus student for the first semester

hello, i'm a 23 years old student from Milan. i'll be living in madrid for the first semester (from september to January) as an erasmus student. i'm looking for an accomodation with other erasmus students. i'm from Italy and i would like to live with foreign guys/girls so that i can both improve the language and discover new cultures. I'm looking for a single room in an apartment, possibly with guys and girls. i like to party, so i would like to live in an apartment when we can have parties and also study when it is necessesary.