21 year old girl, looking for accommodation in Barcelona

Hello! I'm an Italian 21 year old girl who is currently enrolled in Glasgow Caledonian University, in Scotland. I'm going to be an Erasmus student from January till the end of April, however I might want to stay longer if I find an early summer interniship. I study Marketing 3rd year and I'm very easy going and sociable. I'm looking for a room not much distant from the city centre (max. 30min walk), where my exchange university is located (Toulouse Business School). The maximum I can pay is 350€ bills included and the room should have a window, a single/double bed and a wardrobe (preferably also a chair and desk). The shared apartment should have 1 bathroom every 4 people.

I love spending time with people and cook together, watch movies...I already have experience in living in shared flats so I am clean and tidy (not OCD though haha). I am very open minded and I love pets! I can speak 4 languages, including Spanish!

I don't smoke, but I am ok with outside smokers.