Motivation

How do you guys find motivation at the end of a long day? 

I know some people just come home and watch TV or scroll on their phones. I do that too. 

But others go read a book or watch a video that's skills focused. They study. I think about it. I pull up the video or get the book. But then I just stare at them. 

So how do people find the motivation to day that and not just sit there like a blob?