start with longer, low jumps and then when you are comfortable with that, move on to more hight.
try just riding along comfortably and with out moving the board at all, just send the kite a bit to just past 12. All you are really doing is pulling slightly with the back hand and then pulling with the front hand. You will just go a bit downwind a bit off the water. No hight so easier landings and less fear.
The later send it for real and hang on to the board edge longer.
and hang on to your shorts so you can clean them out.....