Sometimes it's good to remember that we are all rejected, every day, again and again.
I found this wondrous site because of Laura Olin's newsletter. She linked to this, and I want to print it out and frame it:
Writers worry about being lost in the sheer volume of content that's created. The important thing to remember? All of those publications need content. They need it more than ever if they want to keep readers. If you create something -- and if you finish something -- you will find more availability in publications than ever before.
Since you can't please everybody, it makes sense that you will face rejection. It's inevitable.
But you will also find acceptance more often than you might think.