First of all, you should tell us when you wash your face and brush your teeth. If it is before bed, it is no problem to wash your face and brush your teeth normally. Even if it's a little loud. Living in such a dormitory is inevitable. That's because your roommate has a lot of things to do, and if it's past bedtime, you don't want to get up and wash. That's your fault. You are too careful. It's your fault. A little earlier next time.