The Mortal Instruments Boxed Set discussion

I can honestly say without a doubt that The Mortal Instruments is my favorite book series. Now like many others I was greatly anticipating the release of Lady Midnight because I so desperately wanted the story to continue. Now, it could be due to outside forces keeping me from sitting down and reading the book. But I have been about 100 pages into Lady Midnight for about 6 months now. I can't retain the words on the page and just feel entirely disengaged from the story. Is anyone else feeling this way about the book? Or do I just have to sit down and force myself to get over the hump?