Two words: Google and YouTube.
Every video known to man has been put on YouTube.
I know it's FAA but you can down load books for free from the FAA website
http://www.faa.gov/training_testing/...-S-8081-5F.pdf
Pilot's Handbook of Aeronautical Knowledge
Still it's not substitute for proper instruction from a real Instructor but it will give you a good basis of understanding.
Get a weekend and holiday job and you should be able to save enough for your PPL in two years time.
You can't get a license until you're 17 anyway.