I'm having my first story published in a national anthology in October, so soon I will be a published author. I recently finished my second story and have sent it out to a few places to try and get that published as well. There have been a couple of rejection letters so far, but my first story was rejected and has still ended up being published.
Rejection is just part of being an aspiring author, but when you're still learning your trade the important part is recognising when you should soldier on with a piece of writing and when you should take the hint. People often point out that the first Harry Potter book was famously rejected by eight publishers before it got picked up. Not that I personally believe Harry Potter is great literature, but it's self-evidently of publishable and marketable quality. That kind of story can console you when you get rejected, but it's very easy to fall into self-protective fallacies about people just not "getting" your work, or it all being a matter of opinion. It's almost impossible to be objective about your own writing, especially when you've put such a lot into it, and sometimes a story just isn't working.
I've also had some sports writing published on the ESPN website, and the occasional pop culture essay on places like Pop Matters. I've pretty much ditched the essay/journalism writing though, because it just saps my creative energy away from the fiction writing, which is what I'm more interested in.