Doing your first kiteloop with 9m in 25 knots would be very extreme.
You can learn to kiteloop with any size kite, just be sure that you are lightly powered (not fully powered).
First try to downloop (pull hard with your front hand during a transition). It helps if you start while riding toeside so that you carve around to heelside. Be sure to start with the kite high so you don't run out of sky.
Then try regular kiteloops by pulling hard with your backhand. Do not jump at first. Aim downwind with your board and as the kite loses power pull very hard with your backhand. The kite will loop giving you a surge of power and will leave your lines twisted. Now you can loop the kite the other way by pulling hard with your other hand. Since you are headed downwind the power surges are easy to handle.
Now that you are downlooping and kitelooping you can add the jump. Do a small jump and when you are at maximum height pull hard with your back hand. Be sure to begin with your kite high in the sky. You will feel a surge of power pulling you downwind so aim your board that direction to land. Do not chicken out halfway or you will slam your kite into the water. I recommend you do the fishing pole grip. (Take your front hand off the bar and put it next to your back hand so you are holding your bar like a fishing pole. The fishing pole grip commits you.)
If you are comfortable doing backrolls, do one and at the peak height pull hard on your backhand to loop the kite. The combination backroll/kiteloop is not difficult. You come out of it with no twists in your lines. You can do this move in light wind with very little height.
A favorite of mine is the front roll/downloop transition, which also ends up with not twists in your lines.
Always remember three things:
1. Start with your kite high
2. Pull hard on one side of the bar to loop the kite and commit
3. Aim your board downwind for your landing.
As you progress you can try more powered conditions and higher jumps. Have fun.