Ok, learn to jump with the kite first - I assume you happy jumping (no board), 360's 720's on land, off dunes etc.
Take a spade and make a little 1 foot high ramp. Then as you come towards the ramp, take the kite from 11:00 to 12:00 launch and float down.
As you feel the kite pull against your momentum try a crouch and jump, time this at the top of the ramp.
Now start moving the kite further back in the window, so from 11:00 to 2:00 and back to 12:00 for the landing.....
practice.... you've got a good board by the way....