Marketing masterstudent looking for accomodation in Barcelona

Barcelona! 

My name is Daniëlle, a 25 year old Capricorn currently preparing for a new adventure in Spain. I am an easy going person and I am always ready for good times and adventures. But from October 2015 'till June 2016 I will be studiying for my master in Marketing & Sales and I'll be a little more focused on obtaining my degree in the right time. When I'm due for some relaxation I like latin dancing and clubbing but also hanging out and sightseeing. 

I speak Dutch, English, a little bit of Portuguese and I am currently working on my Spanish! 

I am looking for a place either in Eixample, Barceloneta, Ciudad Vieilla, San Marti or anywhere that is near the city center or the beach. I'm looking for an affordable place to stay that I'd like to share a flat with like minded people from various parts of the world or with locals who truly know Barcelona. My ideal roommate would be in a similar situation as me, so we can keep eachother focused and support eachother when neccesary!

Please don't hesitate to contact me! 

Greetings! 
Daniëlle