Without registered recovery options or access to active/working recovery phone or email address and other verification details such as back up codes, last used password, most likely (almost zero chance) your account can not be recovered.
If you have password and access to active/working recovery options, it is recommended to:
use automated online account recovery from previous location/ip address where you accessed your account
with device or computer that you normally used to access your account as Google will also check it in the backend.
There is no live assistance/ direct support via phone or email. Automated online account recovery is the only option provided by Google to recover your account. If you are unable to recover your account via account recovery, then the account is lost. Google does not provide other ways.