Hi barbarabp--welcome to PC

I am very sorry you are feeling so sad. I know how hard and stressful school can be at your age. I would say just concentrate on taking care of yourself, try to eat healthy and just try to be nice to people. I'm sure many in your school feel as you do and would love a friend or a kind gesture. As for your parents, I hope you can tell them how you feel somehow. Sometimes they can be so caught up in their own problems they don't see what is really going on with their children. or if you can't talk to them, maybe talk with your school counselor?
btw, I know how overwhelming and confusing this website can be initially with all its forums and subforums. You might get more feedback if you post in the main Depression forum. If you want to, you can ask a moderator to move this post of yours there. To reach a moderator just click on the white triangle with the black line inside it to the left of your message and make your request. Anyways--I hope you can find some comfort here on PC. Wishing you all the best.