20 year old student looking for accommodation in Zagreb

I am a student planning on studying at the University of Zagreb. I'm friendly and an easy going person. I am clean, organized and tidy. I like having fun and being adventurous. I don't have a preferance on roomates, I would just like for them to be clean and respectful. I am looking for any type of accommodation that allows me to have my own room, preferably close to the city centre. I'm planning on staying from the end of February to June.