Yeah, or just leaving whatever it is you're trying to learn for your subconscious to process while you do other stuff.
I've found myself having a lot easier time to learn difficult new concepts by (somewhat counterintuitively) stop trying to learn it for a week or two, then come back to it, and suddenly it's a lot easier to grasp, even if I haven't consciously thought about it since I left it.
I've had concepts click in my head literally years after studying them. I have no idea why. I assume I was exposed to tangentially related information at some point, then an old thought bubbles up and it suddenly makes sense.
I've found myself having a lot easier time to learn difficult new concepts by (somewhat counterintuitively) stop trying to learn it for a week or two, then come back to it, and suddenly it's a lot easier to grasp, even if I haven't consciously thought about it since I left it.