There's a lot to be said for writing linearly and having a schedule and whatnot, but I find if I write the things that're flowing, even if it isn't what's up next, I'm happier with the end results. I eventually stopped fighting that. (For better or worse, the fact most people who read this don't get notifications when a new chapter is up but discover it when they sort of stroll by sooner or later changed some of my drive to focus on working sequentially.)