I really feel that one of the most important things in getting better, is video....lots of it.
You are basically learning to walk all over again. You are asking your body to be controlled and act in a way you never have before. The level of body awarness required to become proficient is amazing. You will swear your arms are straight out from your sides, but they will be behind you. You will swear that your knees are bent at a 90 deg angle and your shins are straight down, but in reality, your feet will be somewhere under your ass.
Video will help speed this process up. Of course, the best way to get video is to jump with an accomplished and experienced freeflyer. Avoid jumping with some yob just because he has seen fit to strap a camera to his head. This can be potentially dangerous/deadly
You can learn this stuff by just repeatedly chucking yourself out of an airplane, just as you could, with no former math or physics training, sit down with a pencil and a pad of paper and rediscover the laws of gravity and thermodynamics. But there are better ways to go about it.
Get video, get it from an experienced coach, and watch it a lot. I used to bring my tapes home on sunday night and force my non jumping roomates to sit through them.