I finished the game tonight after hours of memorizing each move of that final boss. I really enjoyed this game. Almost to the point where it is up there with my top 3 best games from this generation. I'm super impressed by FROM Software and I was already a big fan. I'm currently on a euphoric feeling after beating that final boss. I won't lie, it took more than a couple days to memorize his moves. That's because I became a new father recently. I'm thinking back to the last time I actually dedicated time to figure out a boss and I can't say it took me days to figure out. There was a boss in the original God of War, the Minotaur boss. Not because he was overly difficult. No, it was because there were circular QTE's involved. SoC from Dark Souls III took me a while, but I made it. Sekiro is a perfect example of exercising gaming skills, but at the same time it's about having fun. I didn't farm for emblems towards the end. I had a means to heal and to resurrect. That's all I needed. I knew if I messed around gathering supplies that I'd just choke. I did choke. I got to the final phase and chocked when he was halfway near death. I kept pushing and pushing and 45 minutes later I killed him. Typically it's no big deal, but with a baby you have to memorize moves because time can be super limited. I'm still amazed by it all. God of War wasn't hard. I choked at the final boss, but my 2nd attempt was straight forward. Devil May Cry 5 made it almost too easy to come back after a defeat. The ending battle was awesome, but the difficulty spike wasn't there. All those games were awesome, don't get me wrong.
Thanks to everyone here for the tips too. God knows those helped out a lot.
I really hope FROM Software keeps making these games. I don't even know what I'd call their style. Super difficult, but incredibly rewarding.