I think I seriously have problems... can someone help me?

Hey, that's fine if you don't like communicating with people. You are an individual person and you like your "alone time" or privacy. As the school problem is concerned, just take a deep breath and focus on your school work. Don't panic. When things get tough in life, you have to strive to make yourself better, not worse. Everyone is capable of achieving great things, you just gotta work hard.