Daniela: First, find something in common with some of your classmates, maybe they like some stuff you do, as well! If you guys have class lunch or something, don't be shy and go to it. Join in the conversations.
Ana: Maybe you can start by getting to know them. Or like maybe finding out the people who's company you enjoy then you can ask if you can spend break time with them or if you can be a part of their group for this project. Also, you don't necessarily have to have so many friends. One or two good friends can be enough.
Ana: When something about your roommate bothers you, talk to them about it. Communication is key in any sort of relationship. Plus, you guys live together so you really gotta talk. When you talk to her just think of it as two adults having a discussion. Talk to her about it the way you would want to be talked to if you were in her place.
Anna: Earplugs help. Loud music being played through your earphones too. But talking to her in a civil manner, like telling her to step out of the room or something works too.