Hi rTacularr,
Sorry you’ve been having such a rough time with this.
If the account was hacked before and you’re still trying to get back into it now, I can understand why that would be really frustrating, especially if some of the original account details are hard to remember after so long.
Unfortunately, account recovery issues like this can’t really be handled here on the forums. If you can’t access the account normally, please try recovering the attached email account first, or sign in through any linked platform account if one is still connected. If neither of those works, support can try to recover the account directly. It also helps to have ready the original email address, any linked usernames like your EA ID or console ID, and any purchase or invoice details you still have.
You can start here.
Hope you’re able to get it sorted out soon.