Lol, funnily enough, I did pretty much the exact same thing regarding learning C at the age of 12, ended up writing an OpenGL game for the PlayStation Portable which I released for the Neoflash competition:

http://www.neoflash.com/forum/index.php?topic=4924.0

https://www.youtube.com/watch?v=wAF9o8dsHfA

Since then programming games was always my obsession, and just a few months ago I fulfilled my life long dream and got a job as a gameplay programmer at Ubisoft.