It certainly depends on where you had it saved on.
In case you saved it on Apple‘s Cloud, using the mentioned account you do not have any access to, it will unfortunately be hard to recover by any means…
Nonetheless, as in this case it would mean for you to recover your old Apple account; Apple may give you an option to provide alternative information to recover your account.
I assume that Apple usually does not terminate any accounts due to inactivity, so depending on how you had it set up, there might be a chance.
If you had saved it on some local drive, I am sure you are aware you would require access to that specific drive to check.
To enter a regular account recovery process, you might want to visit iforgot.apple.com