night2433 Your Apex progress and data is stored on your EA Account, (not your PlayStation Account), so you would still be able to play on your Apex Account on PC and your other connected platforms.
However, sadly for the PlayStation Account side of things, only one platform account of each type can be linked in an EA Account's lifetime, (which means that while you can unlink your current PlayStation account, you won't be able to link another PlayStation account to your EA Account).
If you can, try to recover access to your old PlayStation Account.