Devil's advocate (and very serious home cook): Food Youtube solves all of these problems in various and (IMO) much more entertaining and informative ways. There's a plethora of content ranging from highly-technical restaurant inspired recipes to "authentic" home cooking traditions passed down through generations. Tracking a progress meter isn't going to make me a better cook: having access to lots of different ideas and styles and trying the ones that speak to me will make me a better cook. Also, our tastes are largely inspired by what we ate growing up and there few universally-loved recipes. That's one of the most beautiful things about cooking: there's a million different ways to do it.
You don't know how to chop an onion? There are a million videos on how to do that. Want to know the history of a certain spice? There's a channel for that.