Play individual parts (i.e., left hand, right hand, left foot, right foot) before attempting to play the complete exercise. Play only pair combinations, too. Play individual measures before attempting to read through the entire exercise. Give your mind the chance to understand the process of playing. Let the metronome keep a comfortable SLOW tempo for you. "Sing" each part before you play it. Sing" one part while playing another. Imaginative and musical practice nurtures imaginative and musical playing.