First words, the teacher is great. But he used Chinese, if you don't konw Chinese and you are patient you can watch and guess his idea. The slides are English.

I knew a little Emacs. After this video I feel more confidence. The teacher taught from basics.

The Org mode and company package are useful. Org mode can fold topics easily.

Why Emacs

I use MS code and a little vim now. I still want to try emacs because I think it's fun and can practice some lisp.

If you prefer menu you can try spacemacs which is more friendly for new learners. It simply uses space key to give you a menu.