It's painful at first, but gradually you will have friends. If you communicate with them more, you will naturally have more friends. Personally, I feel that there is military training when I first go, which is generally a good time to make friends. It's okay. Relax. The key to going by yourself is to study and make friends after studying. Slowly, with more friends, we can go out to play and eat together, and then we will be happy.