To completely get rid of your account you must sign it up to Facebook or with ata. After that you must wait 24 hours as it's a new account. Then after that you can log yourself out and you can't start a new account. Best option: just delete and never return
Just use a spare email id and create an account. Make up a email id, "account@trash.com" That email would work as well. Sign up with an email like that and create a password. Then wait 24 hours before you delink that account.