When does Anne Frank say she wants to be writer?

Anne wants to become a writer after the war.

You've known for a long time that my greatest wish is to be a journalist, and later on, a famous writer. We'll have to wait and see if these grand illusions (or delusions!) will ever come true, but up to now I've had no lack of topics. In any case, after the war I'd like to publish a book called The Secret Annex. It remains to be seen whether I'll succeed, but my diary can serve as the basis.