Figure out which is the smartest part of your body when doing a particular activity and use THAT part of the body to guide the rest. In music, let your hands, if they can find the notes more quickly on the piano or guitar, guide your voice, if it’s having trouble with accuracy, or vice versa. I am quicker with my voice, but I have students who are quicker with their hands who can play along while they sing the more challenging passages. In fitness, watch for smarter vrs dumber limbs and allow a dialogue between them.
Weaker sides or limbs can learn from stronger or “smarter” parts.