You must keep sending work out; you must never let a manuscript do nothing but eat its head off in a drawer. You send that work out again and again, while you’re working on another one. If you have talent, you will receive some measure of success – but only if you persist.
–Isaac Asimov, American author best known for his science fiction. (1920-1992)
This is where many authors fall short. They give up too soon. If you believe in your work, and have talent, you must keep at it. You cannot let what seems to be a dead end defeat you. (Preaching to myself, too.)