Slash and Burn

As I was working on my current writing project, I fell asleep at least twenty times. I ended up erasing lots and lots of 'lllll's' when I awoke after my nap, each time vowing that I would not fall asleep again. I can't believe my thickheadedness.
If I'm so bored I fall asleep again and again, can't I learn the message I'm giving myself? I'm bored with what I'm writing. That means I have gone in a wrong direction. I have to go back in my story, and find the place where I am interested, intrigued, passionate about what I was writing. No matter how painful, I have to scrap all the stuff that went boring, even if it is the great bulk. If I am bored, I absolutely know the reader will also be bored. If I can't murder my darlings now, they will die of starvation anyway.