Some heel shots are caused because at set up you are too close to the ball causing your arms to start inside your shoulders
By moving the ball around in your stance and using different clubs you can create many different shots to use around the green
Narrow down your focus on short putts by putting to a tee and trying to hit it dead on, this makes your short putts much more exact and gives you tremendous confidence when you are on the course putting to what looks like an enormous hole