23 years old, girl, looking for accommodation in Barcelona

Hello, my name is Marcia. I am from Portugal, I have 23 years. I will do an internship under the Erasmus program at Universitat de Barcelona. I will arrive in early February and i will stay for 6 months

I'm finishing my thesis. I would like to live, preferably with students. I am friendly and love meeting new cultures. I have studied outside, so I adapt well to others.

I would pay between 250 and 300 euros room, with or without costs. I await an answer, because even needed a room