The first thing I would do is purchase, or try to check out at your Library the following book.Amazon.com: Becoming a Chef: Andrew Dornenburg, Karen Page: Books
Have fun with cooking. Read books, watch shows and try to cook your favorite recipes. Practice practice practice. And see where that takes you.
Many of the higher end culinary schools prefer if you have actual work experience in a culinary environment. Try to get at least 8 months of experience by the time you are 18-19. More the better! And once you are in that environment, you might hate it. Better to know that before spending the money on culinary school.
There are also apprenticeships offered by http://www.acfchefs.org
In the state of Louisiana there is:
ACF New Orleans Chapter*
Delgado Community College
615 City Park Avenue, Building 11, New Orleans, LA 70119-4399
Dr. Mary Bartholomew, CCE - email@example.com
But like I said. Read becoming a chef and have fun with cooking.