Read more.

Of the graphic variety, Garth Ennis' Preacher and Grant Morrison's The Invisibles, both series are excellent.

George Eliot's Middlemarch

Albert Camus - The Stranger and The Myth of Sisyphus I'd suggest reading both.

For poetry, Tennyson's Ulysses and The Kraken are always good. Of course, T.S. Eliot's The Waste Land if you haven't already read it.