Benjamin,
You may want to practice on a trampoline first, before you kill yourself on the water. Keep your elbows bent at all times and never let them out completely. People tend to let their arms out and then forget what they are doing. If your arms are in close, it is easier to pull your feet back underneith you. It is definately painful to learn, but it is cool when you are 10 feet off the water looking down. Just remember, edge hard and keep those elbows bent. Once you have it down, you can lengthen your arms out all the way and huge. If there is anything else, please let me know.
Ryan
Launch Wakeboarding School