G.co Recover – Recover Your Gmail Mail Account and Password.
Recover your Gmail® password or Google® Account in a few easy steps.
How do I recover my Gmail account?
If you need to recover your Gmail account, then begin at the Google Account Recovery page (formerly located at https://g.co/recover).
Enter your Gmail address or associated phone number to identify your account.
Alternatively, visit this Gmail Recovery Help page for a more detailed troubleshooter support page.
Image: © Google.