get more speed, maybe hit a bigger jump and you'll get it for sure, just make sure you have more air, and once you get it don't huck it so hard. nice attempt.
1. Toss it back and left. BACK and left, as in like lean back and try to touch your heels, back. It's much harder to spin 'em if u toss 'em like you did in the video, trust me i know.
2. More speed, Larger jump etc. try and get more hangtime, then u can slow down the trick a little, and concentrate more on the landing.
Conclusion: Good attemps . Keep it up, and dont skrew up ur back too much, or else.. well yeah.