"Why learn to manage my money? I'm just a teenager; I don't have much of it anyway."
Sounds reasonable, but it's not.
Think about this: The average American teenager spends $3,000 per year. At the end of high school, that means you'll have spent $21,000. Do you know where you're spending it?
While $3,000 per year is most likely a lot less than your parents spend, you should still be able to: