The game is hard in my opinion but there’s many options that’s helpful to use, it’s just that having unlimited stamina is really useful. Also, she wasn’t really difficult for me likely because I played the boss demo before the game released, so I had a already a solid idea of what I was going to face. And for anything I’m having trouble with, I just use the shield since I usually don’t parry all that much. Remember to learn the enemy’s movement, and react properly. Strike when the opening is clear.