My suggestion (and, yes, I've been at this point more times than I'm willing to admit) is to forego writing in order. I just write whatever comes to me. If it's the end of the book, fine, the middle, fine, if it is just two lines of random dialogue, great. Write to write and the rest will come.
I try to write at least 50 words a day toward my next work. Even if those 50 words suck, I still jot them down. Who knows? Maybe tomorrow the little shoemaker's elves will have stopped by and spun them into gold!
OR
Listen to music.
I think that is something that both life and my attitude have been suppressing, the level of that kind of creativity and inspiration I have been used to working with. I am finding that ideas are not flowing as much as they used too. but that seems to be coming back.
at the moment I am trying that. It is starting to help as well and my swing is coming back.