Sometimes We Get Stuck
If Steven Spielberg gave up on trying to get in to the University of Southern California, we wouldn't have the many of his masterpieces that transcend time. You see, USC's School of Cinematic Arts rejected him twice. Now, there's a building on the campus named after him. Walt Disney, well, he was told he lacked imagination. Albert Einstein was believed to be mentally handicapped. And Sir James Dyson created 5,126 failed prototypes over the course of 15 years before creating his multi-billion dollar empire.
We cannot become stuck in the failures and discouragements of our past. If we do, we will never move forward. Remembering the past failures is important, but dwelling in them is counterproductive.
Forget the past with all of its discouragement and defeat and focus on the future with all it has to offer.