It doesn't matter if you fail, but it matters if you finish strong." This is so true. It is very easy to focus on the obstacles you have ahead of you, rather than the possibilities. I guess the hardest thing really is to realize that failure so often is not failure, but an opportunity to learn and grow stronger.
A close person to me once said: "If you do not learn from your failures, you will fail." Not admitting our shortcomings as well as strengths are probably the root of so many issues we see around us. There is nothing dedication, focus and sincere will cannot defeat or overcome. We just need to start focusing on the right things, and stop finding excuses to finish strong.