I use several techniques to chip and pitch. Now that the weather has warmed a bit I can finish it.
Basic chipping around the fringe to slightly off should be a putting stroke. Different lofted
clubs to change the distance and height of the chip. The stroke remains the same.
Basic pitch, I keep the foot position as a constant and change the ball position. A SW being on the inside of the right ankle. Desending stroke, pinching the ball off the turf. The left arm position stays constant, I feel the entire body move just like a miniature version of the full swing. This will prohibit and shanking.
A high pitch, I move the club to the inside of the front foot, open the clubface. Since the clubface is open the center of the club is now on the heel end, not the center. This is a mistake most people make when playing this shot. The center is slightly off the ground and a skull is easily hit. Use the same mini full shot.
On all these shots, the killers are not swing through the shot AKA stopping at the ball and not adjusting the club to the shot (using body adjustments). The two go hand in hand. Take several practice shots and adjust the club to strike the bottom of the ball.
Just some tips to help you,
GolfBald