The best thing you can do is get help from a real mental health expert. Sometimes you have to try more than one counselor before you find the right one. But you clearly show many symptoms of serious depression, and if your parents won't take you seriously, you can find help on your own. Your hospital can refer you to a local clinic, or you can call prevention/support hotlines to be redirected. I've struggled with depression for a long time, and it wasn't something I could fix on my own. Reaching out and seeing a counselor was the best decision I ever made.