Good GRIEF Jennifer, you look like you're trying to damage yourself! There are better ways of delivering power to the work than trying to punch it through the horn. 

As of the accident and your recovery so far you are partially DISABLED  if you don't adjust your technique to be less abusive it WILL GET WORSE and PERMANENT.

At least use a lighter hammer and better yet, learn to swing in a fluid motion with a lose grip so you aren't absorbing impact and doing soft tissue trauma.

Frosty The Lucky.

Frosty, If that is what you see, then that is what you see..   This is the adjusted hammer swings.. LOL..