I feel like there is a disparity between the curriculum in schools and the skills necessary to be prepared for "the real world" and by-in-large a lot of this knowledge is just assumed. Everything from learning HOW to study (and not just what you need to study to pass tests) to real world "skills" like balancing a budget. But hey, if you've taken the mandatory economics class, you know what bear and bull markets are so you should be set for life. Ah, but I digress.
Anyway, I for one, would love to read this your book. However, I cant see very many teenagers looking in the self-help section to pick up a book that will help them. While I completely agree that teenagers need to be made aware of, what I would call, "life lessons", a self help book might not be the best approach to getting the material out there.