Not even able to Log in [closed]

WordPress.org has its own accounts for the support forums and it has nothing to do with the logins for your website, or for WordPress.com, the hosted version of WordPress. When you self-host a website with the WordPress responsibility the management of your logins is your responsibility and no one at WordPress.org or WordPress.com can help.

You only mentioned Google Domains though. That has nothing to do with WordPress or hosting a website. If you signed up for a website at WordPress.com, then you need to contact them for any help with your account. Their support page is here. But if all you’ve done so far is sign up for Google Domains, then you don’t have a website with either of these services, and need to find a host to set up a WordPress site for you.