I haven't done much sit-down-and-write-all-day focused writing for years, but when I was working on the script for the first (and current) issue of Blue Star Rebellion, I just... wrote all over the place. No continuity at all. If a dialogue fragment occurred to me, I'd write it down, regardless of the order it was actually supposed to be in. My writing process seems to be like making a thousand jigsaw pieces, then going back later and assembling them all into a finished jigsaw.
It's kinda like when I'm art blocked. If that happens, I'll go through my reference library, pull out some figure photos and just sketch. Usually something will form from one of those sketches, and if not, at least I practiced.
Even now, as I start thinking about where the plot of Blue Star will go next, I'm timeskipping everywhere. I can't write chronologically, apparently, so I'm jotting down fragments of moments, lines of dialogue, half-formed events, character interactions... Eventually I'll fill in all the gaps, and take care in the editing stage to ensure the emotions, tone, and pacing are consistent. It works really well for my messy brain.