Security check to verify my identity

Hello,
I try to login to my facebook and it says to verify my identity using one of the security check options. I have done every security check available several times with no success. I identify pictures of my friends correctly. I have entered my birthdate and it says its wrong. I checked the correct recent comments I have made as well correctly. After several attempts of completing all the security checks with correct answers from me the response I recieve is " Unable to verify your idenity at this time". The only option I am not able to try is send a code to my email because when I do attempt that the email address they want to send the code to is no longer available to me. The email address they send the code to is an email I had 10 years ago when I first opened my facebook account. Now I am not able to access my facebook due to this security check that is not able to see that I have provided 100% accurate responses to all the security check information they needed from me. This not right how can they prevent me from having access to my personal account with all my sensitive information and memories I have kept there. Does anyone have any idea what I can do now?