This book has always been one of my favorite, if it's not my favorite but if you don't feel good writing it, don't force yourself.
Ps : It's the last time that you disrespect your work like that! This book is (as we call it in French) un chef d'œuvre. And I will always love you for adding such a precious thing to my life.
Ps 2: if in 30 years you decide that you want to finish it, I'll be very happy to read