Forgot Gmail password
To recover your password, please go to the following web
site and fill in the form:
My Gmail account has been hacked
The instructions to solve your isssue are in this link:
Forgot Gmail password and security question
Without these two essential pieces of information it is impossible to recover your account. It is similar to going to the bank for a withdrawal without your account number and without any identification.
Account not accessed for 30 days
If you have not accessed your Gmail account for over 30 days, it may have been deleted from the Gmail server, it no longer exists
and you can't recover your messages. You must then create a new one, insuring that you note your password and security. question and store it a safe place, remembering where the safe place is.