I agree with Jim11 with building your own ideas. At least for me, this gives me some motivation.
I mean reading academic or philosophical books can often be dry and tediuous, specially if the author fails to make himself clear. But when I read the same book searching for ideas to disscuss and work with makes me more interestested in doing so, since im reading from a critical point.
I a not actually sure of what I think in relation to life and the world, so I try to build my own ideas considering the 25 centuries of culture we have got. So this stimulates me to look for books that help me in that sense.
When I get tired of non-fiction I swich to literature and fiction to rest my mind, since there are great messages too in literature and it's lighter to read it. Trust me, it avoids hedaches from reading Hegel.