Auxiliary exercise: according to your own situation, do two groups of dumbbells every night, 50 times in each group, 10- 15kg dumbbells is appropriate.
Note: Shooting is a full-body action, and the strength mainly comes from the ground-knee-waist-abdomen-upper arm-forearm-wrist. Look at the standard shooting posture, not only beautiful, but also overall coordination. You can never shoot three points by practicing your arm strength. At the beginning of formal training, the coach is not allowed to shoot three points, because the posture will be out of shape if you push too hard. You must keep it right, shooting positions, remember.