I absolutely feel your pain, but piggybacking off of what Cloud said, consumables.
Do the story. unlock working. hit f 3 times and hold shift for a couple of days, then buy enough meds to stock an army and youll breeze through it just fine.
As for a walkthrough, this is a puzzle game. I completely understand wanting to see the content, but imo seeing the content in an organic way and thinking "well, that was hot, but how does it interact with the rest of the game" is a part of the experience. If you are that hardstuck, I can give you some hints for the manor since its def my most tested rn, but I would encourage you to try things.
This game is a regression testers wet dream. It being still kinda unstable and not knowing whether a solution is a proper solution or an exploit is a part of the fun.
**Also, this forum is an amazing place to look for answers. Many people (myself included) get the lightbulb from little scraps of information, and make me feel like an idiot for not putting things together (looking at you, "c-remover")