What are some of the way you've learned to shoot properly?
My dad taught me firearms safety and how to shoot when I got my first air rifle back in the fifties..."It's a Daisy!" Dad typed up a list of ten things he called "The Ten Commandments of the Gun" and made me sign it before he even handed me the gun.
I later graduated to shooting dad's old Stevens 66 bolt action .22 that he'd bought in 1930. I still have the rifle, by the way. He taught me proper sight picture and breath control. Dad was a crack shot, having hunted small game with that .22 during the Great Depression to help feed his brothers and sisters.
Later in life, I picked up techniques from doing a lot of reading and practicing with the handguns I'd bought. Askins, Keith, Skelton, Jordan, and Cooper were all my "book mentors". The Weaver Stance was a revelation to me, and as I've aged I've modified it here and there to accomodate my own little shooting quirks.
Once I grew up, I became basically a self-taught shooter.
That said, dad's lessons and his "commandments" are just as valid today as they were fifty-five years ago.