Every writer gets rejection letters. Every writer. The question becomes how to interpret them, and what to do next.
An editor may reject your story for a multitude of reasons:
Of course, your story may have been rejected for reasons of quality: passive voice, flat characters, too preachy, over the word count, etc. Be sure you look at your story with a critical eye. Make sure you are following the writer’s guidelines.
If you receive a specific criticism or suggestion, you need to decide whether it is justified or not. However, if six editors in a row tell you the same problem needs work, you need to realize that they’re probably right.
If the editor requested a rewrite (i.e. “If you decide to make these changes, I’d be happy to look at it again.), then definitely send the revised version. If an editor makes suggestions but doesn’t specifically ask to see it again, it’s a toss-up. You can send the new version with a cover letter saying something like, “I’ve made substantial changes per your suggestions, and I thought you might like to read it again.” But be prepared to send it elsewhere after you hear back. And if you’ve revised your story after a form rejection, don’t bother sending it back to the same editor – there are plenty out there.
When you send a story out, immediately choose the magazine to which you’ll submit it next. Then if it comes back with a rejection, send it out again right away. You’ll cut down on discouragement if you keep a story in circulation.
All those letters are proof that you’re serious about your writing. Set a goal for how many rejection letters you want to collect this year. The higher the number, the more stories you’ll be submitting, and the better your chances for publication.