It is always a good idea to backup your blog.

  1. Download the blog’s RSS feed.2) Find a website that will allow you to convert an RSS feed to HTML.3) Copy and paste the URL of the blog’s RSS feed into the website, wait for it to convert, and then download the file.

I would recommend saving your blog to a Google Drive folder. To do this, go to the Blogger Dashboard and click on Settings. Scroll down to “Template” and click on “Save as Template.

You can only recover your Blogger account if you can provide the email address and password that were used to create it.