With regards to Traversy, he also does some things without Angular.This for example builds a Node/Express/Passport app that is a good launching point for the voting app (I wanted the first one to have local authorization for ease of testing, so that was good.) Of course FCC directs you to the Clementine site which has a nice tutorial to build a simple site, but with Passport authorization with Github. I found that after building these, I had enough to get started on the voting app. I still didn’t quite understand it all, but as I built, things gradually sunk into place. I’d taken two months off, paralyzed with fear. What I really needed to do was start coding. It was clumsy, but I got there. I just finished the voting app. There are still a few things that I wish I understood better, but I certainly understand a lot more than I did two weeks ago.
With regards to the progress, I’m not as savvy with the technical aspects of the main site as others are. But when you say “progress”, what do you mean? Do you mean that there is no green check mark next to that line in the map? Do you mean that your code is gone? Have you checked the “progress” sections? On right side of the menu is a number in brackets - click on that and scroll down. That should show your history and the “view solution/project” should allow you to see what has been saved. Everything should be saved there. If it isn’t, then we need to check further. You might want to start a thread with just that problem and a title that reflects that. There is also a support email address on the FCC site.
Also a few points. Not all of the challenges are required, just the ones with stars next to them on the map. Also, it’s a good idea to save your code locally, even for little things like this. It might even be a good idea to save it to github - it’s a good chance to get some experience with one of the most ubiquitous technologies out there. And many employers check your github to see how active you are. Often they don’t even check the content, they just want to see that you’re active, that you have lots of “green” on the status page.