Welcome glad that you are pursuing this unique art. However, there are things you should know about Parkour.
"No controll, just pure extacy"
If this is the mental set you are going to use while practicing Parkour. Then don't do it. All it will do is get you hurt or worse. Parkour isn't something you just 'do', training and hard devotion is key to success.
Being free is good but, it also takes work. And what we do isn't on a 'Jump on faith'. We know that we can and we train hard to do so.
In this world there isn't one thing you can do that doesn't require some type of devotion. It seems to me your idea of Parkour is what gets people killed.
I encourage you train and do the necessary means to be free. But, if you are to hasty it won't be good.