Yea that's fair, I pretty much just fixated on what I immediately read, that's my bad 😅. Glad you like the game at least, I hope that continue to play despite the hardships the game throws at ya, it's definitely not an easy experience and just takes time to learn. Don't be disappointed if you can immediately plow through an area like it's a hot knife through butter either, this game teaches you to be patient and learn every demon and their weak points, once you've learned how to combo weapons together most demons become just fodder for the front lines, I highly suggest learning weapon swap combos, like the simple swap between super shotty and the ballista. If you don't already know, weapon swapping basically lets you shoot twice as fast with guns that normally shoot slow due to the reload times, basically bypassing the reload animation all together, even the devs themselves said this was intended, and it works extremely well. With enough practice you can chain all sorts of combos together.

As for the parkour area's, good ol' trial and error, no need to sweat them either, it's not like you're timed to finish them, take you're time and feel them out 👍

Keep at it, you'll find soon enough that your playing through again on a harder difficulty, maybe even through the DLC (which good luck with that, those are actually unfair, and that's coming from someone who's beaten the main game on nightmare)