I can recommend a bunch of books, but I'll give you the best.

The C++ Programming Language - Bjarne Stroustrup
A good book, describes a lot of stuff, it is tough going after chapter 2 though (and I'm 16 also)

Tricks of the Windows Game Programming Gurus - Andre LaMothe
A very good book, IMHO, and I havent finished reading it yet

You'll probably find a language reference useful, such as 'C/C++ programmer's reference' - Herbert Schildt. It's quite good for quick lookups on built in functions.

Take it easy,

-Mezz