How do I kill the nerves in my knuckles?

Question

I started boxing and my friend said that I should kill of the nerves in my knuckles. He said that he punched brick walls till his hands were shaking out of pain everyday and eventually his knuckles lost their nerves. He said that I should drink alot milk too.I saw his knuckles they were hardened and big. I started punching with it alot and the skin is ripping off and bleeding. My knuckles always are sore. How long till the nerves are completely dead.

Answer 1

 you can make a "Punching" Brick. i was taught how to make it from a legend. you wrap quarter in cotton rope around a brick horizontally then vertically, then you cut a garden kneeling pad t the size of the brick and do one last horizontal wrap securing the pad. this will build calluses on your knuckles and you will feel less when you punch, a lot less damaging then a brick wall