When I started writing and submitting, I was hungry to see my stories published. I followed the advice to send stories to new markets as soon as they came back. I wrote several short stories and sent them out once they had gone through revisions.
Then I sold some stories. Yay! I kept submitting. I kept writing. I published a novel through World Weaver Press. I published three novels on my own. I blogged. I became the correspondent for the Odyssey Writing Workshop blog. I wrote more fiction. In other words, I got busy. And I was no longer a new writer. I had published some stuff. That initial hunger wasn't there. Sometimes stories came back and then... I didn't send them out for a while. When I finally got around to finding markets for the stories, I experienced doubt. Maybe the stories weren't good enough. Maybe they shouldn't see the light of day. I didn't always submit them.
I realized that by not sending them out again immediately, I was allowing the dreaded inner editor too much free rein. It's similar to when I write rough drafts. I have to write rather quickly, or I begin doubting the story. I have to write fast enough that the inner editor can't keep up, and I have to submit faster than the little bastard, too.
Somebody in one of my writing groups mentioned rewarding herself after so many rejections. A form rejection was X number of points, and a person was Y number of points. So I came up with my own system. After I reached certain points, I rewarded myself with little prizes, like a couple of new songs on iTunes, or a small tube of hand lotion I really like. I started at the beginning of the year, and I've already racked up 14 personal rejections and 18 not-so-personal rejections. I submit far more often now than I did at the end of last year. And best of all, the inner editor is blessedly silent, and that hunger to submit stories has returned.