Regardless of which installation method you choose, you will need to become familar with Gnu Emacs as a first step. Every installation of Gnu Emacs contains a built-in tutorial which you can access by typing C-h t from inside Emacs (that's hold Control, type h, then release Control and type t.)
Note on CapsLock: Because the Control key is used extensively in Emacs, you may wish to remap your CapsLock to act as a Control key. On Windows, this can be done with the Microsoft-supported tool Power Toys (available from Microsoft Store). On Linux desktops and MacOS, it is possible to map the CapsLock key to the Control key using the Settings or Preferences app.