Playing the ball further back in the stance is typically a helpful way to hit lower shots, since it de-lofts the club a tad.  I also had some wedge issues, and practicing was the only way to improve (for me).  Just getting used to how the ball comes off the face increases confidence in hitting good golf shots.  

I'm partial to a higher pitch shot myself.  I feel like I'm just dropping the ball by the hole.  It seems to me that I get more of the "toe shot" when I open the face, thus changing the angle of approach for the face of the club.  But, since I am opening the face, I do hit the ball a little higher.  The way I was taught a pitch and run was to play the ball further back in the stance, *** the wrists on the backswing and hold that angle through impact.  This resulted in a "hooded" face that had a lower ball flight with less spin and more run.  Also, ensure that your weight is on the front, creating a more downward blow, and lower ball flight.  Weight on the back foot will result in shallower angle of approach, and higher ball flight.  Maybe you could try that?