23 years old girl from Rome is looking for accomodation in Varna

I am a girl of 23 years, I will be in Varna to write my thesis and graduate in January in Rome. I want a single room in a shared apartment with other girls (including Erasmus). I'd like to share life with other girls my age with whom you can go out and have fun. Maybe a flat with boys and girls but also a room in college(university dorm). Thank for answer