You have to know how to accept rejection and reject acceptance.
There is something delicious about writing the first words of a story. You never quite know where they'll take you.
Start writing. I don't mean to sound dismissive, but START WRITING. There is NO SUCH THING as "too late" in the arts.
Don't be a writer. Be writing.
You can't wait for inspiration. You have to go after it with a club.