Pitching is easily the worst part of my game. I don't know how many times I've 3-pitched it just to get onto the green. It easily adds 10-15 strokes to my score. It's just this mental block that I have, I have no confidence in it. Sometimes I hit it too flush and it just lines over the green, other times I get too scared that I barely hit it and get under it and it only goes a few feet. It seriously pisses me off.
If you are taking a number of strokes to just pitch/chip it on to the green, then try just getting the ball somewhere in the middle of the green. Don't focus on where the flag is because it may be tucked in a tough position or it's not easy to get to from your lie. So many shots are wasted by average golfers by not playing smart and trying to get "too aggressive". You can do pretty decent by playing to the center of the green and then trying to 2-putt. When you are able to consistently get your pitches to the center of the green, then you can try to get closer to the pin if it's accessible.
One thing to try to gain consistency is try one "type" of shot. If you can consistently have one-shot (low pitch, bump-and-run, high flop, etc) that you can pull off then you will become more consistent. So many average golfers try to pull off shots they see pro-golfers do and it's just not possible.