I like the essence of this blog post. I have applied similar strategies and although I am not a 100% sure about them being the 'right thing' to do, I am fairly convinced that they are a 'way to go' about learning new things. One thing is clear though (like Malkiel says in his book 'Random Walk Down the Wall Street' -- you become rich slowly, you only become poor fast), you have to learn to be patient -- you are going to get better at things only gradually.

Sometimes however, you need a more direct feedback if you are 'making progress'. I have seen that maintaining a blog or two is very effective in getting that feedback in two different ways. Making video lectures of your own is also an attractive option, but requires more effort. If you just write down something you think you understand as succinctly as you can, it helps to solidify your understanding. And if your (understanding of the matter and hence) writing is any good (of course, you should actively promote it), the magic of Internet will make your writing visible to many. People will flock to your blog and will ask you all kinds of questions, sometimes they will point out your mistakes and then you learn more what you thought you had already learned.