So often we are confronted with the choice to act and our initial reaction is refusal. The thoughts, fears, doubts and insecurities come to the forefront and tell us that playing it safe is the right way. It is when we overcome that reaction and proceed in spite of our feelings that we develop and grow.
Success comes from doing what failure is unwilling to do. When we take inventory of the wins and losses in our lives, we see that victory often required doing what we resist. Likewise, defeat increases doubts and insecurities. Better to simply do it anyway.