Here's where I finally ended with it:
Watching ANOTHER video called "Starting Over" that does not, in fact, show you how to START OVER! Wow. Yup, truly horrendous design here. If there's no way to start over (and by over, that means starting at the beginning, and that means being able to start a new page and select a new template. If that's not possible, don't have a video called Starting Over. By the way, that video does not show how to start over. It shows how to reset the defaults of the template you already chose. And when you chose that, again, it says "Start With [template name]". Awful. Truly awful design and user experience. Sorry.