Re-using an email address

I have a problem I’m certain is of my own doing and am looking for a solution.

I have two accounts. I associated myemail@gmail.com with account #1 and associated myotheremail@gmail.com with account #2. I’ve deleted account #1 (two days ago 7/25) and today am trying to change the email address on account #2 to myemail@gmail.com.

I get the error “The email you entered already exists”. Has anyone encountered this and is there a way to fix it?

Thanks

following. Experiencing the same issue.