Writing by hand: the flow of ink from pen to fingers, from brain to paper. The rhythm of writing. Typing is not the same. Writing forces us to do what @Freewritehouse promotes: write, non-stop, no editing, no hesitation. Keep that pen moving.
Your photos of your neatly handwritten pages are impressive! My penmanship was ruined in college and never recovered.
My offspring are unable to read handwritten letters from old people. If it isn't Palmer-perfect cursive, they're sunk. Might as well be The Enigma Code.
Glad you're writing and thanks for sharing your methods!