Yeah, I would say if you haven’t tried the tutorial yet (unless it’s borked and I am unaware of it), it goes through basic interaction commands so they’re …actually basic instead of hard to guess at. Helped me a lot.
It probably was bleed-out, and in the future, you can go to your knife in inventory and (a)pply it, and pick 4 for cauterizing. Not a fun option, but a survivable one heh.