As previously stated, multiple times
Fill out the recovery form with as much information as possible - https://forums.d2jsp.org/recovery.php?c=1

R3my gave you some very good examples of information you can provide in his post above (#9)

You do not need to have access to your old email in particular, that is why there is 2 sections for emails
the first one clearly stating "What email do you believe may be associated with this account?"
and the second one, just as clearly stating "What is a current working email address where you can be reached?"