If you are not able to remember one of your old Gmail addresses, to get or find my Gmail account, you ought to navigate to the homepage of Gmail and click on ‘Can’t access your account?’ option. This will lead you to another page where you must pick the ‘I don’t know my username’ and click ‘continue’. In the username recovery page, you must enter the email address that you had provided during your registration. So, to find my Gmail account, you must remember your optional mail address you had provided. Else, if you had provided a mobile number, you could enter that too to receive a text message with your account details.