Given that you can't answer your security questions successfully, see:
Security and your Apple ID https://support.apple.com/en-us/HT201303.
This document says “without proof of your identity via security questions and other carefully selected criteria, Apple Support can't help you reset a password or perform any other actions on your account.”
Thus, we can do nothing to help you, except to mention that Apple support might help you if you have an acceptable extenuating circumstance. if you want to contact Apple support to discuss an extenuating circumstance, see these support options:
Get a call from Apple support to help solve your problem using this
link https://getsupport.apple.com/?caller=kbase&PGF=PGF63005&category_id=SC0245&symptom_id=23362
Apple ID Support https://support.apple.com/apple-id
Apple ID account security for country-specific and region-specific help https://support.apple.com/en-us/HT204169
Get Support: We’re here to help https://getsupport.apple.com/. Go through the options to find the best support option.