Get up, try again. It is not matter that you lost. Embrace it, learn from it. If you down, rise again. If you keep failing, try another angle, until you succeed. As much you do not give up, it is not over yet. Should say, it's not failure, only temporary setback.
Cannot be better without learning from failure, which come from mistakes that been seen from risks. Without taking risk, there will be no advance. Let's go again.