NaNo helps you to develop work habits that can turn your would be failures into successes. My novel would have taken me two years to get this far, based on my old routine. Now, I expect to get it to 90,000, around year's end.
It's halfway through, now, and I have logged 30,000 words to date. I should make 50,000 easy by month's end. But that's just the beginning, as my novel needs to be 90,000 words before I submit it for possible publication.