I'm not a perfectionist but I have this problem with both novels and short stories. I keep thinking one more revision will make them better than ever. I work on some pieces for years.
Don't be like me. Be smarter than me. Finish your stuff.
Submit your stuff!
Speaking of which, the submission deadline for the awesome August 2016 issue is coming up soon!
July 15, 2016! Send your good stories in!
In the meantime, I'm going to go try to take my own advice and submit something...