Andrea Waltz is the co-author of the book, Go For No! She recommends the following tactics for dealing with set backs:
Reframe your perception - It is an undeniable truth in life. You are going to run into failure at one point or another. We are all going to hear someone tell us "no" in our pursuits. This is simply part of the route towards achieving our goals. At the point where you are hearing "no" and all things point toward failure, Waltz says that "success is almost always straight ahead."
Clarify your mission - Do you believe in what you have to offer? Most people will answer with an enthusiastic "yes!" Waltz says, "Understand that you are on a mission of service to others. People are out there waiting for what you have; it is your job to find them!"
Take action - Many times, it can seem overwhelming to bounce back. Break it down into smaller pieces and get after it! By concentrating on smaller bite-size chunks, we will be able to see successes and boost confidence. As the confidence builds, start adding bigger chunks.
Reinforce your activity - Waltz says, "Instead of celebrating results, reward action." This coincides with the basic premise of The Positive Coaching Alliance's Double Goal Coach. The only person you can control is yourself; not anyone else. By doing this, you will essentially retrain yourself on your feelings toward rejection or set backs.
Keep going - Waltz offers great advice here, "The truth is most people give up too soon. Most things take longer than we want or expect. Be patient. Stay the path." Kevin Eastman gave me the best advice in regards to this by telling me that the fact that I had the experience can only help in the future.