If I were to try something like this, I would have a backup plan. Not that I don't trust in my ability to learn or my dedication be any less, but I would recognize that this is a field where making it and not making it depends on a lot of different factors - not all of them in my control. Quitting school and working for someone else wouldn't meet my own standard.
I did something far more risky than choosing a carrier in my earlier days but I had a backup plan. To me, taking a risk and going for my dream includes preparing for unexpected or unintentional.
That's my take on this.