A lot of teenagers write to me and say "I want to write a book. I want to get published." And those are two very different things.
For the first one, that you want to write a book, I think is an excellent idea and you should totally do that because teenagers who want to write, you should be writing. You should be writing all the time like a maniac.
Don't worry about the second bit, just yet because A. You need a lot of practice. You need to do it for, I'm not kidding, years. And then once you are published, it's a business. It's a job.
Plus, every author I know was that teenager who sat in their room and read and wrote. That's who becomes an author, but that's what you have to do for a while before you become an author.

Maureen Johnson