Here is an easy tip.
Practice right before you go to sleep. For those of you that don't know...when you sleep, your brain practices skills that you have just learned or have been doing a lot. This is one of the many reasons why people say you should get a good night sleep and why lots of people encourage you to study right before you go to sleep.
I started doing this for just about everything I want to learn fast, after I proved it to myself. Back when i was learning to fan, I sucked and I was slowly getting better. One night I was doing just plain decent fans and not consistently. I figured I had a few more days left till I got it right and went to bed. I woke up the next morning, picked up a deck of cards and the most amazing thing happened. My fans were perfect, every single time.
Try it, trust me it'll help. It has been scientifically proven by many people.
-Cyrus