you use modifier keys to access those keyboard functions, much like how in emacs holding the control and pressing F can substitute a right arrow key. just imagine it like having a few more control keys with different functions assigned to them.
it becomes second nature pretty quickly.
emacs is a hard to learn because you need context to understand anything from a tutorial, which isn’t intuitive unless you use emacs, but to start using emacs you won’t get anywhere without some kind of guidance, which usually comes in the form of a tutorial.
it’s a ‘the chicken or the egg’ sort of problem. my recommendation is doing both. start using emacs exclusively as your full-time text editor unless you absolutely need to use something else to meet a deadline, and read through a tutorial or manual in your spare time. it’s hard at first, there isn’t really any way around it, but after a couple weeks of powering through it it gets easier. having the cheatsheet open on the side helps.