Practice drills for your position, taxi ball, be a motivator scrum half, such as Argentinian Agustin Pichot. Practice your pass, both hands and put the ball in the ground and one hand in the waist and with the other the pass. Also go jogging, so you can run and run in the field. Aaron Smith is considered one of the best scrum halfs in the world now because of his endurance.
practice......practice like do drills for that position
