Luckily, there are multiple ways to change your password ... click on "Forgot password?" Google needs to verify that you're the owner of the Gmail account you're trying to log into.
With Google's recovery tools, you can quickly regain access to your account. Make sure to update your recovery information and use a strong password to prevent future issues.
If you forgot your password ... ll likely need to change it in other areas, too. Write your new password down so you'll remember it if you're prompted to input it in Gmail, Google Home, or ...