Anyone who asks whether they need help already has the answer. You are smart enough to know that what is going on with you isn’t “normal” and that if it continues you will be in real trouble. I think that maybe you are not so much depressed as scared. If we were talking, I’d want to know how you are handling the entry into high school and the expectations that go with it.
The teen years can be very, very difficult, especially for sensitive people like you. Although it may feel that way, I assure you that you are not at all alone in being unsure and upset.
Please talk to your parents about how much difficulty you are having fitting in and finding your way. A few sessions with a counselor who specializes in adolescence will give you some new tools for coping with challenges and the reassurance you need to navigate the teen years.
I wish you well.