I hated writing by hand, too.

I had to write more starting in junior high (middle school). This was back in the late 70s. We had an old, non-electric typewriter at home, so, I took typing in seventh grade. For final edit, I'd cut the sheets up and use white out, and then take the taped up mess to a store with a copy machine. That's how I got through high school English classes, too.

Later, when I got into graphic design as a profession, I learned this was common practice, and called "paste up".

That's not how story writing works. Or any long form written art works for that matter. Try to ask any writer if they ever "write in their head" and publish those as a book as-is