If the work goes fast, you’re in the zone. You’ve found the muse, and things are looking up. You finally know what you’re doing.
And if it doesn’t, if it’s a terrible slog and you have no idea how to continue, or even how this works, any more, the response is the same.
We show up the next day and still do the work. Because it isn’t going to matter in a hundred, or even a dozen days how you felt today. Either you made things, or you didn’t. Over time, it gets fuzzy whether it was a good or a bad day. But if there’s something you made, it stands on its own.