Focus on what you're doing when you bowl the perfect ball, and try and repeat it.
When walking/running in to bowl, don't think about anything else but where you want to bowl. Look at that spot on the pitch, and focus. Visualise how the delivery should come out and urge yourself to land the ball there.
Don't worry when you bowl a bad ball after a good one. Just forget it and move on. But if you do bowl a good ball, take a moment to admire it.
This helped me get my legbreak to the point where I back myself to land it on the spot I want to 8 times out of 10.
When walking/running in to bowl, don't think about anything else but where you want to bowl. Look at that spot on the pitch, and focus. Visualise how the delivery should come out and urge yourself to land the ball there.
Don't worry when you bowl a bad ball after a good one. Just forget it and move on. But if you do bowl a good ball, take a moment to admire it.
This helped me get my legbreak to the point where I back myself to land it on the spot I want to 8 times out of 10.