Rejection is inevitable throughout all walks of life. For most artist however, it may be more so than most others in life. There's no sense in creating a hard luck story about it. Excepting this as a key responsibility in pursuit of your excellence is above all else the most essential part of your growth. Understand that the path you have chosen as an artist is one of sacred territory. One that can be connected to the roots of humanity on so many levels if you choose it to be. It is our creativity that has propelled our existence into what it is today. All of the triumphs in Humanity were forged in it's setbacks. Understand that the rejection is simply the blade being pressed against the stone. This graceful nature you go about your setback will only echo into your work and therefore into the world as intended.