First of all, if you are isolated by all your roommates, no one is more relaxed. If so, I think you should communicate with them as little as possible, but your eyes must be softer. Because avoiding communication can help you reduce conflicts. In their eyes, whatever you do or say is wrong. After this limelight, their attitude towards you is not so tough. You can try to communicate with them and buy them some snacks, so that the relationship between your can be gradually eased, and you may even become friends with some of them.
Furthermore, when your roommate is ill, you must pay more attention to them and try your best to help them do some small things, so that you will not be isolated again.
You can also communicate with them bit by bit through language, so that they can trust you and accept you slowly. If you are just pushed out by some roommates, other roommates are still very friendly to you. You can communicate with your good roommates and people who reject you and ask them to help you explain what you may be misunderstood. In this way, the relationship between your dormitories will also become harmonious. If someone still pushes you out, you can gradually ease the views of people who hate you through the people around you.