22 year old girl, looking for accommodation in Krakow for erasmus from sept to feb

Hello !
My name is Kassandra and im a 22 year old student from Greece . At the end of September i will be coming to Krakow to stay during the winter semester (which according to the academic calendar starts at the 1st of Octomber and ends approximately at the 10th of February). I will be attending classes at the Cracow University of Technology and i would idealy like to find a place to stay not to far from the campus . 
I am a very easy going person and my friends would definately describe me as friendly and fun to be arround :) . I am also a very tidy person and i like to keep my space clean because i believe coming back to a cozy ,tidy and clean space at the end of the day is the most satisfying and relaxing thing. In general i would not describe myself as a party person but i'm definately not a person to say no to having fun making new friends and living new experiences. After all its a part of the erasmus experience. 
Having said all that , Im looking to rent either a studio ,or a private room in a shared flat regardless of the gender of the other roommates and i would prefer if the apartment has 4 bedrooms max and my maximum badget is 350€ including the bills. 
I know its a lot to ask but i'm hopefull !