Just curious, was the jump just for a lark, or is your instructor seriously going to teach you to jump? If you're riding western and it was just spur of the moment "here, pop over this and let's see what happens", I can understand. If not, I do think you'd be better served finding a jump instructor, and be prepared to spend a lot of time working on your position on the flat.

Please tell me you're wearing a helmet, at least over fences?

imageimage
Many thanks to MoMoMare for the awesome siggy!