Unless you can get scholarship then you will have to pay for your training.
When you think of the overall costs involved you do get a bit jaded and think 'gosh how can i afford that?' I certainly did.
I'm 19, so just younger than yourself, I work 40hrs a week full time, and take home the average wage a 19 yr can expect, and I put 3/4 of my monthly wage into flying. It took me 6/7 months to get my PPL and now i'm spending all my wages on VFR flying, in around 1 yrs time I hope to have around 150hrs with my IMC rating and ready to start my ATPL theory.
I will save up a few months to cover the costs of my ATPLs theory and after this point, I may vist the bank manager for a little loan to get my CPL/IR done and perhaps my FI rating.
This way the debt isn't upto my eye balls and i'm taking it at a steady and enjoyable pace.