I did something similar to this a year or so ago. I still have the calender.
It was quite an experience, and a great way to write a novel. What helped me with it was a week or so before I started this, I went through my days as normal except I narrated everything I did and things that I observed. It helped me get in the mindset of writing a novel and guided me through parts of the novel where you needed to have filler material.
I wish you all the best luck. You will not regret it.