Staggering new skill learning over long stretches of time:
Every few months, I drag out a little drawing tablet for my laptop out. I mess with it, get frustrated, figure out how to use it a little, then put it away.
I let months go by. Then I try it again.
This time, finally, something ‘clicked’. I’m using it as a mouse (which is one of the ways I’d try to train myself in the past, getting mostly angry in the process) and my hand knows where to put the pen on the tablet to get to the right links.
FINALLY, my “muscle memory” clicked in. I believe the long stretches of time inbetween can be useful for learning certain things.
What I do is I learn something until it gets frustrating or boring. Then I put it aside for days weeks, months, sometimes years. Then when I pick it up again, I find I know more about it than I did before.