From this I can tell you that the problem is not the book.
Try to see magick differently from what you think magick suppose to be. Have an open mind and do away with any believe you have about magick and start seeing magick from fresh point of view.
Checkout this links and read some results members have had:
And this:
I am dropping these links so that you could read them, digest them, give yourself another chance without whatever attitude you might have had towards magick.