Typing is one of those things that is just experience. Grab a typing test program and put in the time. It took me a few weeks, starting with doing simple things like the equivalent of jkjlj; sets until my pea brain got the minimal amount of muscle memory to be able to use it in the wild. YMMV but I can still use QWERT as well, but it feels weird and not as natural anymore.
Yeah, that’s pretty much it exactly. Great book, oddly enough that is pretty much world building but not greatly part of the story.