We can't delete it. There's no need to anyway; no one knows who you are.
You can tell your parents. It's very sad that you think you would be causing trouble. Your uncle is the one who caused trouble!
You have 'victim' thinking right now. That's understandable for a minor, but that's why we are here.
Please believe us that telling your parents is the best thing to do.
Plan how you will say it. Plan when you will say it. Maybe after dinner. Your parents might get all upset, not because of YOU, but because they will feel guilty about not being good parents! So let them cry and shout and get it all out. It will be tough on all of you.
Then it will be solved - by them. Whatever they do, you won't have to go there anymore.