Most of the basic material a writer works with is acquired before the age of fifteen.
When I was thirteen I told my father I wanted to be a writer and he told me I needed to go out and see the world because I wouldn't have anything to write about unless I did. But many writers believe that much of their material has been gleaned from their childhood. Flannery O'Connor said "Anybody who has survived his childhood has enough
information about life to last him the rest of his days."
I find myself going back to my childhood for material time and time again. Today write about your first childhood memory and see where that takes you. It could be a poem, an essay or a short story. Now get back to work!
The Writing Nag