This is one of the problems I've had back in my teens when I was reading fiction. Especially authors of fantasy or science fiction novels seemed to be very keen to describe their worlds in the most intricate details possible. And as a result they became very strenuous to read to the point where I simply stopped reading them at all. I think (and this is entirely subjective) that if you need to describe your fictional world in such perfect detail then maybe a book is simply the wrong medium. Then you should maybe opt for drawing a comic, where you can put all the power of your imagination into actual pictures.