Dear Diary, finally I managed to delete everything that has to do with that hobby and the hobby group. Whatever I could, anyway. It's kind of strange why I couldn't delete the rest, though. I will reset to default if necessary, maybe it's a bug or something.
I'm glad I never posted any photo or story about that hobby or the group anywhere online. If I did, I would have to delete those as well when I stopped all activities with the hobby group.
I had a weird dream a few nights ago. wth. not sure what it's all about.