First what kind of a lifestyle do you have? This is very important because it affects how big you are once the story begins.

EDIT: I've decided to add two options to this chapter. Featuring the future, IE when the main character is an adult and has his own life. For the sake of difference each one possesses it's own differences which'll be obvious. The choice's are too long to go into detail but, with the happy family you're about a short 3 feet tall, but happy nonetheless. The evil family option leaves you anywhere from a couple inches to microscopic. Whatever the person who adds there wants