Well first you have to learn how a computer actually works, and what programming does for and to a computer. Know how all kinds of languages interface with a system. C++ is a HIGH level language, and to get to the point where you can make games is like 3-5 years of Computer Science, plus tons of personal experience with trail and error. You are basically saying "I am going to design and build a car from scratch, but I haven't learned how to change my oil yet." Even C++ for dummies expects you to have some fundamentals before starting.
Look up the GameMaker language and tutorials first, then get into Visual Basic, then C#, then maybe start learning C++.
What a load of shit. All the studies say it's easiest to learn a new language when you're young. Start out with the best palms - don't let Old Man Winters dim your sparkle.