We went through a kitchen re-model as we moved into our home about 4 years ago. Our cabinet maker took a 4 week "vacation" in the middle - so it took about 2 months total.

I absolutely agree with you about disliking the chaos - I'm right there with you. The 2 things that helped me the most were trying to keep an area of the house that wasn't chaos where I could stay and having planned breaks (e.g., a coffee shop break, a dinner out, etc.). I can handle things better if I know when they will end.