thx for help i will try it 
Just to make sure that you understand what Counterpoint is talking about when he stated, "Use the arm instead of the wrist":
Envision a compass. When the tip of one end of the needle points north, the other end points south (180 degrees through the center of the compass). Envision your playing mechanism, the fingers the north end of the needle, your elbow the opposite end, as the entire needle on the compass. Envision a stationery point as a fulcrum or pivot point through the middle of your forearm that will remain stationery in space, just as the compass needle remains fixed at the center. When the top end of the needle (your fingertips) sweep to the right, the back end (your elbow) sweeps to the left. Actually, the act of rotating your elbow towards your body, with that stationery pivot point located at the center of your forearm will automatically sweep your hand to the right. And vice versa.
Use this fulcrumized type of arm rotation to better target the pedal points in the upper registers.