Ask Lemmygrad

Read something you enjoy. Eliminate distractions (turn your phone on silent and put it outside of your reach). If reading difficult material try to do it in a structured way, take notes or highlight important passages. Have a drink or a snack nearby. Taking a break every couple of hours is also healthy.

But also understand that not being able to read for long periods of time is not the same as being lazy. Some people just don't have the time or the mental energy after being exhausted from work.

I've had periods in my life where i would regularly read for 6 or more hours a day easily and not even notice how much time has passed, but i also have periods where i am unable to dedicate any time at all some days, or have to consciously make an effort to set at least an hour or two aside.