How to develop a "one fluid motion" shot? (I have a hitch in my shot)?

I'm a really good shooter but my shot is broken down into two steps, I sort of bend my legs and then bring it up, hold it there and release. How can I make it one fluid motion? Any tips?How to develop a "one fluid motion" shot? (I have a hitch in my shot)?do some form shooting where you hold the ball with one hand and shoot from close range