Hi. I'm Brian and I'll try to help.
When you try to log in, do you get an error that the account doesn't exist? If that's the case, your account is gone for good. No one can restore it for you. If you used an address that ended in a Microsoft domain like @outlook.com, then that address is also gone for good. It has been permanently disabled.
If you do not get the error that the account doesn't exist, exactly what happens when you try to log in?