25 year old intern looking for a roommate(s) in Karlsruhe

I am a student from Croatia doing an internship in Karlsruhe in a winter semester 17/18. I am looking for positive and friendly roommate(s) who are willing to share a flat and would like to explore Karlsruhe, its nature, nightlife and whatever there is to explore. It is a plus if you are open minded and flexible so we can always make a deal about when we are going to party and when we are having a quiet tee evening, haha!