I deactivated my old account but cannot sign-up with same name again :(

Hi, I had an account that I deactivated cause I wanted to use the account’s Docker ID with another email and create a new account with a different ID with the old email…
So I thought the fastest way would be to deactivate it, but after I did that I wasn’t able to create an account the original Docker ID that I deactivated, “Username already taken” is what I always get when I try to create a new account using that ID, I do a “Forgot Docker ID or Password?” either cause the old email is assigned to a new account now, and won’t receive anything regarding the old one

Is there anything that I can do to get my old Docker ID?

No; see Can Docker IDs be reused? | Docker Support.