In order to use the email password self-recovery feature, you must set up a recovery phone number and/or alternate email address for your account.
Click on this link to go to the Personal Info page of your Google Account - https://myaccount.google.com/personal-info
In the Contact Info section, select either EMAIL or PHONE.
If EMAIL - Enter an email address in the Recovery email section.
Which email to use
Choose an email address that:
Which number to use
Use a mobile phone that:
2. You will be given a chance to try the previously used password. If unsuccessful. Click Try another way to use your recovery phone number or email.