Failure and Disappointment

Accept pain, failure and disappointment as a part of life, not the entirety of it. Life involves taking many risks every day, and not all of them will end positively. That's what defines risk. But the flip side is that some actions will lead to good results, and it's generally better to have a mixed bag than to have nothing at all. Ideally, the good stuff will outweigh the bad, but you'll never reach that point unless you put yourself out there and hope for the best. When in doubt, remember Lord Alfred Tennyson's words of wisdom:

I hold it true, whate'er befall;
I feel it, when I sorrow most;
'Tis better to have loved and lost
Than never to have loved at all.

http://www.wikihow.com/Be-Optimistic