> But like every habit, the only thing you have to do is to keep at it. And if you pay enough attention to it, something will click in your brain.

a bad habit i noticed after taking hiatus of focused work was me jumping into different windows and tabs and just mindlessly consuming content without finishing them. after noticing this pattern, i decided i will focus on one task at a time and finishing it, like reading the OPs article. it did wonders for me and i noticed i'm now even more focused that ever. the lesson is indeed being aware first, and then practicing the habit.