This sounds exactly like my attempt at organizing a dsa chapter in my hometown. ❤️ I relate to this so hard, especially

It kinda became a special interest/hyper fixation so I feel like that was a strength. But, I also was so obsessed and would ruminate so much I'd lose sleep thinking about it and strategizing and I think I burned myself out.

and

I'm kinda dreading going back to it, because I feel like I've really carried the whole process and am so so tired. I'm really proud to be a part of it but I don't know that I would be able to be the main organizer to herd all the cats as the figure of speech goes, way too taxing for me

I hope you find a way to balance things, or to talk to your fellow organizers about what's going on and ask them to find ways they can contribute and take some of the burden off you. ❤️ You're doing something awesome, and you deserve not just accolades but accommodation and care.