I cheesed the demon of hatred but honestly wasn't even fun to fight. Game got easier when a user here suggested not to worry and suddenly i breezed through all the content.
Going into each fight with the mindset of doing it for practice made everything easier for some reason.
I will forever wish any other game had combat like Sekiro. To me it feels like a rhythm game with how the back and forth flows and I can't get enough of that. I'm so sad it never got any story DLC, so I'll keep wishing a sequel following the true end eventually comes out.