19 year old girl looking for an accommodation in Vienna

Hi everyone! I'll be studying Transcultural Comunication from next semester in Vienna. I'm looking for a dorm or a roomie to share an appartment with:) I'd prefer the 9th or the 19th district if possible. I'm a non-smoker, I always try to keep my appartment nice and clean and I don't mind cooking. I'm a theatre goer, I love books, painting, meeting new people and just hanging out:) 

I have lived in dorms before and I've lived in an American host family so I like to consider myself quite experienced in living in a foreign community:)