This may be a mistake, but I'm going to tell my parents to leave me alone.
Why do you want to tell your parents to leave you alone?
They insult me and make me feel like I'm no good.
Your parents should love and support you and not make you feel like you're no good. Talk to them and tell them how you feel. Maybe you can work out your differences.
My parents should just fuck off, I'm done with them and I'm going to tell them that.
You shouldn't swear at your parents. They won't react well and if you try to talk to them about your relationship they might get so angry that they'll refuse to speak to you again.