The MOST important factor for pitching and chipping, is to MAKE SURE that your hands (those dangly things at the end of your arms) are in FRONT (closer to the target) of the ball and the clubhead at impact. This may seem to deloft the club, but you will not hit those "bladed" shots where the ball goes very low and hard over the green...ALSO, be sure to "finish" the shot by accelerating to a full or fuller finish position. Don't chop down, and stop directly after impact...accelerate to a nice finish.
If you can just do those two things, you will be able to get the ball up, and be able to hit it a consistent distance, and have it stop on the green. Then once you have that action, practice more full swings, or less full swings to regulate distance...
Good Luck, and please send me $50 for the lesson.