It seems like my save file got all glitched up? I saved at the beginning before attempting to open the door to the house. Then, whenever I saved again, only that first save file's there when I quit and reopen the game. The strange thing is, when I open the door to the sawmill, the game immediately jumps to my most recent save. But my inventory only contains the stuff that I start out with when I first enter the sawmill. For example, I picked up the leaves before, but now they've completely disappeared. The ritual knife has, too.
I'm still trying to fix the problem. I tried running a new game and overwriting the old save file but nothing happens. Maybe I just need to create a new save file and use that one instead. I just thought that this was a really weird glitch.