Stick it out, Chemical girl, it's the second greatest novel ever written (after 'Pale Fire'). The first time I read it I was 18, and I think for the first 50 pages or so I was feeling a little queasy at having to exist in Humbert's disturbing little world. This will fade as the novel progresses, don't worry. Humbert is one of the greatest unreliable narrators in literary fiction, a self-deluding genius incapable of understanding the concepts of 'right' or 'wrong' in relation to anything but himself.
Nabokov's use of language is, as ever, astonishing, and in it's own way 'Lolita' is a tragic, touching love story. Nabokov's greatest achievement: by the end of the novel the reader finds him/herself empathizing (against their better nature) with the tragically misguided, selfish figure of Humbert. He's not a sympathetic character by any means, yet Nobokov almost makes him so.
Do yourself a favour, stick it out.
And then read 'Pale Fire' or 'Ada'.