Hi all, first time poster here, I am currently in the "get the balls to go for it" stage too. I can offer a few tips from my own experience. I have been going for vulcans which have really helped me to try a forward as the start of it is kinda similar. The only difference is that you need to sheet in rather than leaving the sail stationary. Going for a vulcan has given me alot more confidence to go for the forward. Doing catapults with the sail only while just off the plane helps too, it gives you the same sensation of the rotation and landing on your back. I find that looking at my clew helps heaps!
check out this site www.roynbartholdi.com
heaps of tips n stuff on looping and all the other tricks out there.