22 year old Student looking for accommodation in Barcelona

Hi, 

I'm an international student that's coming to Barcelona in the beginning of February. I'm currently looking for some room where can i stay for my 6 months exchange program. My budget is 550$ per month.I'm a harming person with a good scene of humor.L like the companion of the people around me, I can be a good mate in the apartment. I already know all the unspoken rules in the close living spaces, cause I'm working on the ships as  seaman. I'm a very tidy person that likes when it's clean in the living spaces.I like extreme sports music, art and I love cars,and I'm also exercising from time to time.