19 year old girl looking for accommodation in Madrid

Hey! My name is Constanza, and I'll be doing my internship at a hotel in Madrid. I am fluent in both English and Spanish. I'd prefer a flat in the center, but I'm open to other areas nearby with 1-3 roommates. I'd love to find a friendly and laid-back flatmate with whom I could explore the city!! I enjoy art-related activities, walks, going to cafés and bars, cooking nice meals, meeting new people, and trying new things in general. Normally, I'll arrive in Madrid around the end of February and stay until the end of August. 

As a flatmate, I am neat and well-organized. I like to have my own space and time from time to time, but I am considerate of other people boundaries too.