20 year old student lookinf for accomodation in Lisbon

Hello, my name is Beatriz and I'm going to study law in the university of Lisbon until the end of February. Therefore, I'm looking for a place to stay until the end of February, which must be located near a metro station (yellow, red or blue line). I'm a very organized person that will respect other people's privacy and help with all domestic services. I don't mind sharing the apartment with other people, but I'm only willing to share a room with other girls. I don't have a pet and I don't smoke.