My account seems to have been deleted somehow!

It won't let me log into my old email and it just keeps saying that my account doesn't exist! I think my account may have been deleted because I have a twin brother and we recently turned 13 and our parents only got one email (probably for my brother) about us turning 13, causing them to no longer have as much control as before. I've tried for 2 days to get it back but I can't seem to figure out how to get it back. If there's anyway to restore a deleted account can someone tell me? If Microsoft could go into some sort of version file and find my account from a later period from maybe November 1st and restore it to it's previous version that would be great! Someone please help!