yeah... like... anything over 10k, I usually have to rewrite about three times, in order to make sure the character voices are consistent and that I use the same writing style throughout. Also I make a lot more mistakes with my English when I write longer things, because I'm juggling so many different story threads? And so I'm less focused on remembering my English grammar, which means I have to rewrite a LOT. ahhh this was a tl;dr answer <3