I'm getting confirmed Catholic...

[My imaginary friend is GOD]

You're 16. Your parents can't force you to do anything you don't want to do. So fuck their religious bullshit. They tell you to talk to a priest, tell that priest how you really feel. What the fuck is he gonna do anyway? Not a damn thing. What are you parents going to do, ground you? You probably have a phone and can text your friends if you want to. If they take away your phone, the internet is everywhere. The only thing they might do is kick you out of the house, but you probably have an understanding friend or family member that would take you in. Don't worry, be happy. It's all good. Etc.