Is this schizophrenia or what?

Go to your doctor and seek help. The medication they give out WILL help you, they're there for a good reason and won't harm you at all, they'll just make you feel better, or at least help you to control how you're feeling. I'm not sure if what you've described is exactly "Schizophrenia", rather like EXTREME paranoia and anxiety issues (I might be wrong though, I haven't been learning about schizophrenia for too long) but it doesn't sound like what gets described in class. Sorry, but whatever it is, is not normal and you should ask someone for help- personally I wouldn't want to feel so paranoid all the time, and I doubt you do either. Good luck, and I hope you manage to get better. Take care x