International Student looking for a room in September

Hello, my name is Afonso and I'm a portuguese student that will be doing an erasmus semester at Munster University. I'm studying Economics and I'm really looking foward to get to know this city and country as most as I can! For that, I need to have place to stay (: so I'm hoping that I can find a room that fits my requirements (but I'm not very picky :) ) . I would just like to find something central, near to the university and to the train and buses station (travelling a lot is in my mind).
I can say that I'm a very calm person, wanting to meet new faces and to get more communication skills and really needing to get out of my cage (aka my parents' house :) )
I really like to walk around, going to cinema and concerts. I love music and football! My perfect plan is to grab a beer with friends before a football match or a concert in the afternoon.
I speak portuguese, english and I'm trying to learn german as well.
Really hoping to find something that allows me to fully experience this my new adventure , so if you have a room from september to february, please reach me out!