Know that games are won and lost on ground balls. While approaching the ball step to it placing your foot near the ball. Sink your hips and put your head parallel to the ground. The butt of your stick should get down low as well. Scoop through and bring the head to your face. Immediately look for the outlet to a team mate.
 

Pass, catch, cradle and shoot with BOTH hands. Nothing impresses a coach more! Learning to use both hands requires patience, because it will not happen over night. A good way to learn your off-hand skills, is to look at what your dominate hand is doing. Mirror the way you are passing. Go through the same motions. After you do this, spend a week of practice using nothing but your non-dominant hand. During line drills, 6v6, fast break, anything! Only use your off-hand. This will be very frustrating, but keep at it. Using your off hand in games will seriously improve your play.