#two puppets

Vaguely related to my last post (inbthat its also about writing) i rlly admire ppl who properkynplan their fic before they start posting. i started w a vague idea and i have some points i wanna touch on but everything else is as much a surprise to me asnit is to the readers. Wrote a wholeass arc i had no intention of addressing at its first mention. Now im trying to prepare for the next arc and i cant figure out whats the best way to not rush the next big Thing cause it should have build up, right?