Um, yeah, pretty much and happily so.
Here's how I define deadline. Three months before the book is due to my editor. Before that three month marker, I say, "I have a book due." Or, "I'm working on my next book."
But at the three month mark, I have to buckle down and get 'er done. By then, I should have most if not all of a first draft done. First draft meaning I have an idea where I'm going but half if not more could change or be severely tweaked.
Two months out, I start rewriting. I need at least two weeks before the deadline for someone, anyone, hello? to read the manuscript for sanity. Did I miss closing a plot thread? Does my story logic and sequence make sense? Are the typos too funny for words. Do my characters ring true.
Then, I need a few days to go over it and send it in.
The last month, which is about where I am now, I call it Deep Dark Mode. That means "Girl, put your head down and get this book done, don't you dare look up for the light of day until the final, this is it The End."
Speaking of Deep Dark Mode...