Years back, a gun writer (I forget which) decided to test the home defense advice he'd been giving. To simulate a middle-of-the-night scenario he arranged to fire his .357 in a dark, enclosed space. The short story is that the .357 was good for one shot. Good for one shot because the first shot blinded him with muzzle flash and had him flinching for the painful sound.
Just a thought.
In reality, NOTHING is easy to shoot in the dark due to the flash and sound.
We try to keep some sort of light on even if it is just a dim wall light to try to not be in total darkness.
Adrenalin takes care of this for you as part of your Fight or Flight instinct.
There are many testimonials from gunfights as to what the adrenalin does by the way they reacted and observed. The Tunnel Vision effect.
The flash of my 44 gives great snap shot of my next shot on hogs at night. I don't even hear the blast during the rush.
muzzle blast yes, but as far as sound, i wouldn’t worry, if you have a goblin coming at you, you’re gonna go to tunnel vision.
odds are that you won’t hear anything and you won’t feel the recoil.
The way it is done,and the way you are taught in the military,is you keep one eye closed. The beauty of a handgun is that you can shoot with either eye open, unlike a rifle, and you simply open the other eye after firing. We used this technique with parachute flares(giving my age away?), you close one eye and shoot the he** out of the enemy then open the other one after the flare goes out, this saves the visual purple in the closed eye and retains your night vision. The sound is another matter that you will just have to deal with. Beats he** out of being killed by some intruder.