Just a quick update- I'm currently in the thick of finals season, so it'll be at least a week or two till the story gets another chapter.
Thanks for the encouragement! I might post some of the snippets I've got stored in my google drive, since people seem to really like these Worm/Touhou xovers.I do have something like that in ao3... And those concepts sound really fun! You should write them, even if they're omakes or one shots.
Keep at it and don't give up!