Solved! Go to Solution.
Unfortunately if you forgot your date of birth you must Contact Support, that's the only way if any of getting your account info to change. As for the date of birth, that you cannot change, once it entered in to your account upon creation, it's there forever. You do have access to your email address for that acocunt? Or is it completely fake where it doesn't even exist? Also you can change your email address via console if need be.
Sony Computer Entertainment America
M-SAT 6:00 a.m. - 8:00 p.m. PST
Sunday 7:00 a.m. ? 6:30 p.m
Here's another option, you are no longer tied down to the PSN since all you digital content like movies and cross buy games/Trophies wont work on your PS4 you can consider buying an XBOX ONE lol.