This is probably a very common problem these days. One thing you could try is to use a timer and start with smaller goals, like reading for 20 minutes straight.

This is probably a very common problem these days. One thing you could try is to use a timer and start with smaller goals, like reading for 20 minutes straight. Gradually increase it to an hour or so, and decrease the breaks. I find that when doing really boring work, just having a timer present makes me focus. Obviously I'm not using a timer now...