I want to start fresh on this server after a long hiatus, and with that I want to create a whole new account - however, my gmail account is in use on this account. So I went to settings, changed my email (A) to a one-time-use email (B), and now I want to create a new account using A, but it says A is still in use. However when I go to my account here, the new B is displayed as my email.

Will I be able to use A for a new account after a few hours or is it locked out?