You can delete your account by going to the Blogger dashboard and clicking on “delete blog.

You can’t.
You can’t delete a Google account you no longer have access to.

You can request a password reset from your email or phone number associated with your account.
The Quora question was “How can I delete my Blogger account if I forgot my password and email?”
If you can’t remember your password, you can request a password reset from your email or phone number associated with your account.

If you have an email address associated with your Blogger account, you can reset the password by following the instructions in this article. Otherwise, if you don’t know your password, there is no way to recover it. You can delete your account by deleting all posts and pages.

It is not possible to permanently delete an email address. You can, however, remove it from a particular account or service.

You can’t remove your Gmail account because you would lose access to all of your emails and contacts.

Yes, blogspot does delete inactive blogs. Blogs are deleted after 180 days without any activity.

To request a blogger delete, you can contact the blogger directly and ask them to delete your content.
If that fails, you can also contact the blog’s owner and ask them to remove your content.

If you’ve forgotten your Blogger password, there are two ways to reset it. The first is by following the instructions on this page: https://www.blogger.com/recover-password
The second option is to use the “Forgot Password” feature in Blogger’s email notifications. If you’re not receiving email notifications anymore, you can update your settings by following these steps: https://support.google.

M1 is an ad network, so you’ll need to go to the “Ads” section of your blog’s dashboard and click the “remove ads” button.