How to Use a Handgun in a Stressful Situation?

If you're expecting a threat more than a, like, 30 feet away, have something other than a hand gun. Hand guns suck at hurting people. They suck at killing peoplee they're ineffective. The heavier the gun, the less recoil is a problem and easier it is to use at range. A pistol caliber carbine, you know, you stick a light on, that's a really good home defense weapon.