First congrats to Nimrod on making fine progress today.
Now to the drills: As you drive relax your shoulders and keep the elbows so if they are thrust backwards or you forward there will not be a crash. Use the wheel as a rail to ride on as you lift one hand and let it come down as you bring the wheel with you for a turn and vice verca. Avoid crossing your arms and move the least to handle the work and see how this affects both your mood and body.
This is taken from a eight year old gymnast: Lie on your back and hold your ankles with your hands. Now arch up and down as you breath and relax the back as you do it.