I see that parkour didn't help your grammar, spelling and punctuation, and couldn't control your propensity towards misdemeanor-like behavior. You don't seem to learn from prior mistakes, blame others and the system for your own faults, don't take kindly to authority, and cannot graciously accept constructive criticisms. You came to us for advice, but instead of showing some gratitude and appreciation, you become annoyingly defensive about your past transgressions. I guess parkour didn't teach you how to avoid and overcome personal obstacles.
All the faults I've listed is more than enough to derail any chance you may have with getting a job with the airlines. The closest you can come might be as a ramper.
Come back after you've grown up a bit. And don't spend any more time jumping off of two story buildings. That's just crazy; you could "ingure" yourself.