You are going from class to class. You are lonely. You ask if you are a boring person or if the problem lies in not knowing how to relate to your peers. I doubt if you're boring. If you think you may be, you can try taking an interest in other people.
People love attention.
It could be that you don't know how relate to your peers. You would know if that's possible. You may have lived more with older people or children. You may be shy. Taking a sincere interest in others helps bridge the beginning of relating to others.