I recently had a client pay me to write up a text for a religion based on worship of myself. I gave him some rituals to do and some prayers to say. He has a prayer he has to recite when he wakes up and before bed. He has another to recite while I'm beating him.
He also has an altar to me in his home.
I fucking love it.
That is insanely hot, I love it!! I have a bit of a weird psychology -- or maybe it's not weird at all -- that I'd LOVE a dynamic like this, but for me, it wouldn't be as fun if I have to ask for it ... maybe it's because I need to be reasonably assured in my head that she'd end a post about it the same way you did ("I fucking love it"), rather than "Slave asked me to create a religion about me; so tedious". So I"ve hinted around, and she's gotten the hint, but hasn't quite bitten yet, which makes me doubly cautious about her fucking loving it rather than finding it tedious.
To what extent is there interaction with you? I'm my mistress's personal slave, so it's a bit easier to have out-of-session interactions (or, more accurately, there is no such thing as out-of-session) ... I imagine that maybe on "her day" (every Wednesday, or whatever), I'd have to send a 10-second snapchat video devotional of some humiliating sort or other, maybe every Thursday I'd use Eat24 or Doordash or whatever to send her dinner, just little devotionals here and there that interact with her.