Good stuff, keep it up! Yeah, i’d do so many reviews less without Flaming Durtles (Anki mode).
I think night reviews are fine. My accuracy does go down quite a bit around 4am, but it’s not even that much, and there’s still a learning effect when you get reviews wrong. Arguably, it’s even better to fail reviews, because that means you’ll see the item more often.
(this is from a script you can run in the browser console, see topic above)