20 year old American girl looking for a roommate in Rome

I'm looking for an apartment in the Trastevere area in Rome. I'll be studying at John Cabot University and I want to live with someone also going to a university nearby. I love to travel, go to the beach, workout, and hang out with friends. i want the apartment to be in a good area . I would love to speak with you a lot before going and become close because I dont know many people in Rome. I don't want to spend more than 550-600 for a room and I don't want to share a room.