It is asked over and over again, and the answer is always the same. Persistence; submit, submit, submit! It is a little like wining the lottery, except an author earns every penny. Of course there are the bits about making sure to have a story worth submitting, and making sure to follow the submission guidelines, but like tiny ants building a massive structure just taking that one small project in your jaws and moving it to the end of the tunnel as the queen commands will soon assure an unassailable fortress form which your warriors can sally forth to do battle with the plant eating pests that trouble the land and even the mightiest human will call you blessed!
Hmm, that analogy might have gone off the tracks a bit. Thresher ants are awesome people. Respect!
But focusing on the topic at hand. If you want to get published you have to submit; again and again and again!
Also keep records of who you submit to and when. That will come in handy later.
Does anyone else have a nice inspiring animal analogy? This author might need a new one...