A professional at a Golf show that I attended a two years ago gave a seminar about strategy of the short game, and about the higher you put the ball in the air, the more you lose control of the outcome. He condensed hundreds of dollars in lessons into a 40 minute Seminar. (I took notes).
My short game then was just so-so. If I missed a green, I probably was making bogey.
The first two rules of the short game involve your options and choices.
1) "Putt if you can......Chip if you must.....and Pitch only if you have to. Picture the shot and choose an option".
2) "The Flop Shot is to be used only when you can't play the other three."
3) "Do not move your head under any circumstances while executing the shot. Your looking and thinking about how,where, and why, should be over by now."
4) "When Chipping or Pitching place more of your weight on your front foot, and open your stance".
5) "Chip with a 6,7, or 8 iron....ball flight should only be a couple of inches off the ground".
6) "Pitch with a PW...on a flat lie. Downhill lie use a GW, Uphill lie use a 9 iron. Pick a club and get to know it."
7) "When Pitching or Chipping remember that the ball will run more placed further back in your stance, and will run less played further forward in you stance."
8) "Practice at known distances on a relatively flat green from a couple of repeatable fixed positions in your stance....one more forward and one further back. Later you can add one in between them."
9) "Know your distance to the pin and what proportion is green and what proportion is not,. You will learn to make good choices if you consider that the ball should land on the green. If you cannot land a chip on the green from the rough, play a pitch."
10) "Observe the breaks on the way to the hole and play a landing area that you have to before it transitions into a roll."
Finally.......PRACTICE UNTIL YOUR HANDS BLEED or YOU CAN"T HIT ANOTHER SHOT".

(And observe everything you see and experience....spend the time.....Dude...you will get good!!!)
A killer short game will take more strokes off your game than anything else. If I miss a green now my chances of getting up and down are very,very good!
Cheers! (I hope it helps!)