I’m sorry this happened to you and hopefully it’s all part of an adjustment process that will work itself out in time. Maybe you won’t be friends with these girls, but hopefully the novelty of being mean girls will lose it’s appeal with time. In the meantime, rise above it and know that the problem is them, not you. If not you, it would have been someone else, girls like this always look for a target. The fact that you get along with your actual roommate is very fortunate, so try to focus on your relationship with her. If clubs are exclusive and you need to be accepted, then try to find an campus organization/charity where you can volunteer. People never turn down free help. And one of the good things about volunteering is that you get the added boost of feeling good about yourself for helping other people. Most of all, remember you are only one month into freshman year. You are so young and things are so new. The way things are now will not last, they will get better. Either the other girls will get better or you will make other friends and stop caring.