Smiless,
I know exactly how you feeling. The same happened to me in the UK when I was your age.
Know this: the initial tests you failed are standard colour vision tests. You can pilot a plane as safely as a person with normal colour vision if you were allowed to. The CAD test is just another test of colour vision and nothing to do with the task of flying - it's just a red herring, not to mention another way for your aviation authority to make money and keep you thinking they are trying to help you.
Your easiest option is migrate to Australia where court cases have had fantastic results. We have had colour vision deficient pilots for 20 years or more at all levels including international airline captains.
You should research avenues to get funding to fight a legal case within Europe.
Last edited by outofwhack; 9th Mar 2013 at 05:01.