FUCKING FINALLY
16.5 hours and 2771 deaths for the second half of the Kamilia fight alone. Kamilia punished my pride at getting through phase 1 relatively quickly, and she punished it good. Phase 4 simply had no mercy - I'm fairly sure I reached it 30+ times before I beat it, and there are still a couple of patterns I have absolutely no idea how to do. Amusingly enough, my best phase 4 pattern selection RNG was my second attempt at it, and I made it through four waves in that attempt hahaha.
So glad to finally have this off my chest. Now I can get back to playing PYF or some random needle games or something.