I think I need a therapist...?

Your parents love you and the only thing that would break their hearts is knowing you are suffering and wouldn't turn to them for help. Every person goes through struggles and I being the first to say that if I didn't talk to my mom about stuff I would be in a mental institution. I also sought help from my doctor and got onto an antidepressant to help me overcome the hormonal changes I had suffered. I would suggest talking to your parents, seeking medical help and talking to a counselor. Seeking these forms of help show strength more than weakness. It takes a humble person to admit all this and allow others to help.