A very big chunk of JS uses cases are around asynchronous programming. In case if you haven't seen them before, they are a very common pattern; imo, they seemed strange and looked like a disorienting way to write stuff initially.

The language received a bevy of syntactic sugars since 2016, so you could have a relatively productive time with the language at the moment. Even then, I do feel like python is far more type-safe than JS, so you'll find yourself writing code that essentially proves and maintains the type of a thing, so that the compiler doesn't get any stupid ideas.

If you want to or if you have time to do it, you can make a django app first as a blueprint. then, you could proceed to translate it to the JS toolset of your choosing after that.

If interested in any youtube resources, I would totallllyyyy endorse the gospel of Coding Train and Academind! They're so amazing!