This is a video of Jun of Youtube channel JunsKitchen sharpening the $1 knife he bought into a blade easily capable of slicing paper, transparent tomato slices, and cleanly cutting three bottled waters in half. His cat watches the whole time. Apparently those knife sharpening stones really work. I just bought a knife from the dollar store myself and was planning on doing the same thing but then I started playing five finger fillet and now my hand is bleeding and it won't stop and I'm getting light headed. What should I do? "Play again with the other hand." I like the way you think.
Keep going for the video.