Hello everyone, so I started playing Blasphemous 2 weeks ago and I finally finished my first blind run today, I really loved this game, and now I came here seeking answers to a few questions.

I usually prefer to explore and do everything in any game I play, and that's what I did in Blasphemous as well, I tried to 100% and unlock/obtain everything, as a result I got ending C, so now I am not sure if I can get endings A and B through NG or if I have to make a new save file.

Speaking of NG , I prefer to do everything I can do before ascending my save file, my save file is currently at 97.86%, I finished Miriam challenges, got all the relics, all the bones, all the churbs, all the rosary knots, maxed the sword abilities, maxed health and fervour, I only have about 3 prayers missing(including the one that Cleofas should give me, he isn't showing up in the church despite me talking to him in prison and donating the 100k), about 4 rosary beads missing, 1 heart missing, I finished all the puzzle rooms(4 rooms), found all the corpses, so what am I missing? and is it even possible to reach 100% before NG ?

EDIT: I found the artworks room and the Arcade machine room, now my save file is 97.90%.

https://preview.redd.it/aj3lqv6m71ic1.jpg?width=1366&format=pjpg&auto=webp&s=4e78ef579b25f290cd05545d23e778166bd0cf32

https://preview.redd.it/51kbfw6m71ic1.jpg?width=1366&format=pjpg&auto=webp&s=8c9755c47940a5af68f0e9e7a7b6baa7aa54a1ac

https://preview.redd.it/l1mr4z6m71ic1.jpg?width=1366&format=pjpg&auto=webp&s=d55bc88ad7b147e4694ca3011cd2ea52a6297865

Also, what's up with this boulder in Ferrous Tree(left to the entrance to the hall of the dawning), it clearly blocks the path to a room but I couldn't figure out how to destroy or circumvent it no matter how much I tried.

https://preview.redd.it/wng89ekp71ic1.jpg?width=1366&format=pjpg&auto=webp&s=02dfbbd7135017460c932f7f7194bb984cac68d5

https://preview.redd.it/4s7rldkp71ic1.jpg?width=1366&format=pjpg&auto=webp&s=3f8989c34de6e1486d757d80e3ad6c7749b196b2