I don't mind having found this out through trial and error, but it would have been nice to know up front:
The writing half of comics has thrown me for a big ol' loop consistently over the years. When I was really young there were a lot of comics that I just entered with no up front planning and would flop quickly.
When I was a little older and working on my first long series, I ended up over-planning and got stuck in the pre-production phase for years. I was writing out the story in Novel form rather than just trying to script it, thinking about random chapter and arc ideas in the future but without ever laying down a coherent outline, etc. There's quite a lot of written material strewn about in regards to that series, but none of it amounted to much in Comic form. I just never left the pre-production phase.
With my first Tapas comic that followed the above one, I wanted to get started really quickly so I wrote out the whole script and gave it a couple of editing passes... but I ended up rushing the process and completing the script in like 2 weeks. It worked out fine for just that one-shot, but then trying to add onto it afterwards was hard because the world was built around that particular tale and not very solidly in general.
So for my newest attempt where I'm returning back to a long-form story, I want to try and hit the Goldilocks "juuuuuust right"
I've had to force myself to slow down and actually give the writing the quality time it deserves- meaning that I want to outline the whole thing start to finish so that I can like... edit it a few times, work out exactly how long I want it to be, & etc. But at the same time I want to stay focused and move swiftly so that I don't spend a literal decade on it again before starting properly.