You are probably my neighbor, Wentworth, KU etc
But you need to get up to speed on self defense hun!
actus reus, mens Rea, culpability, purposeful vs reckless, tueller drill, the crime triangle, descalation, decision point, MPC and code of lawful use of deadly force, capability, opportunity, ability of criminal actions, etc.
read some articles by Bill Jordan, Jim Carrillo, massad Ayoob, etc.
Ask a cop friend to loan you Edged weapons DVD.
One weekend of hard research and you'll be up to speed. I'll take you shooting at the bullet hole in Lenexa and will bring some Title 2 NFA toys for fun.