21 years old girl, from Rome, looking for a double bedroom in Barcellona's city center preferably with private bathroom

I'm Sofia,21, studying and living in Rome. i'll come to Barcelona for my five months erasmus at the UB university. I'm a clean, respectful and very friendly girl and i'd like to find a room in a flat with funny, friendly, international and interesting people with which to share moments of tranquility and fun. I'm looking for a double room preferably with a private bathroom from 6th February to June/July in Sant Antoni, Born, Gothic or Eixample (city center).