Not to pick on FlatFender, but here's a reality check. Shootings are nothing like square range drills.

Your opponent might start with violence, not threats.
Your opponent is probably armed.
This is not his first rodeo.
He may have brought a few friends.
That draw you practiced so diligently may not work so well when you are on the ground getting the crap kicked out of you, or when the bad guy is actively trying to take your pistola from you, or when someone is shooting at you or going at you like a human cuisinart.
When you shoot, you had better not put a round through the dome of some person walking down the street, or through the bedroom wall of a child or elderly person.
Unless you qualify for a public defender, expect your attorney to ask for $5K up front, and you had better exercise your right to counsel as well as your right to remain silent even if things go well.
Even if you win the battle, you can lose the war-legally or mortally.