@HongKongCargoPilot
I also could not afford to do a PPL, and also due to where I live there is just no legal airspace (if your from HK you will know what I mean as they face a similar problem in the city). But this does not stop/hinder you from succeeding.
As long as you have the determination, motivation and aptitude you have a very good chance.
Im at Final Selection now with only a couple of trial lessons under my belt in terms of flying experience. (A few of the people I have met also have little/no flying experience), but this is my dream and I have spent every hour studying and working as hard as I can to succeed. This is what must be done to stand a chance on a course like this.
I hope this helps!