Draw a line two inches behind your ball and another one six inches behind your ball and practice entering the sand between those two lines
To create consistent aim with every shot in golf start with a constant positioning of your left foot one clubhead behind the ball, then spread out your feet depending on the club you are using
There are two ways to practice the short game. First are how-to shots, where you learn how to control trajectory through set up and swing shape. Second are situational shots, where you move around the short game area and practice specific shots.