To learn to kiteloop start without jumping.
Ride along, come off your edge heading downwind and loop kite. All that will happen is you get pulled downwind, no problemo, get used to doing these then start edging a bit more and then small jumps.
Exactly, this is good advise. Kiteloops on the water is a great way to learn exactly how much extra pull that your particular kite will deliver when you loop it. They'll also let you get a good sense of the timing. For a beginner it's better to learn all this on the surface rather than trying to get the timing right while up in the air and falling towards the surface.