I understand your problem :) I've partially solved it by dedicating my lunch hour to (along with eating) reading some good non-fiction book. Bit by bit, you make progress.

Obviously, you could do it some other time, but the important part is to make it a habit, so that it feels almost automatic to do, or that you feel like something's missing/feel guilty if you skip it.

Actually I used to read in lunch hour. I used to specifically eat lunch later than my peers so that I don't end up going in a group (I know, I know, I was picking reading over society ...). But of late my workload has increased a lot, so I'm having lunch at my desk.

You're right about making a habit. I am trying to read an hr before bedtime or an hr right after office (when I reach home) nowadays.