Teen angst or depression?

When i was a teenager i experienced everything that you've listed. I think you're going to be just fine, but if it will make you feel any better then bring it up to your parents, or talk to the school counselor. It may not be anything serious right now, but it's possible that it could get worse, especially if it's depression. 4 out of the 5 things you listed are relatively common feelings to experience at your age. The 5th one that you mentioned worries me a little. It wouldn't hurt for your parents to have you evaluated by a psychiatrist. They will evaluate you, give you a diagnosis, (if there is one) and come up with a treatment plan that best suits your individual needs. It may just be that you need someone you feel like you can trust, and that cares to listen to you. Whatever the case may be, i think you're going to be alright. It's great that you're very much in touch with your feelings. That's a positive thing. I wish you the best, and i hope you're going to be alright. Good luck!