We can’t get good at something solely by reading about it. And we’ll never make giant leaps in any endeavor by treating it like a snack food that we munch on whenever we’re getting bored. You get good at something by doing it repeatedly. And by listening to specific criticism from people who are already good at what you do. And by a dedication to getting better, even when it’s inconvenient and may not involve a handy bulleted list.
This is precisely why teachers assign homework problems for their students to work out. You get better at physics by applying it to unknown situations and figuring out the answer. Not by having someone work multiple problems for you.
My own method when someone explains some concept to me is to try and come up with a nontrivial example and give the result, trying to explain myself, and see if I have figured out the application of the concept.
I compare/contrast this with behavior of people who say they are trying to learn (level of sincerity unknown) and who just want to be spoon-fed the answer, without knowing the path to the answer. And who often complain that it should be easier.
[A] subscription to a magazine about taekwondo will only be as useful as your decision to drag your fat ass into a dojo and start actually kicking people. Over and over. Otherwise, you’re just buying shiny paper every month.