You gain strength, courage and confidence by every experience in which you really stop to look fear in the face.
Mistakes are the portals of discovery.
Don't be afraid to give your best at what seemingly are small jobs. Every time you conquer one it makes you that much stronger. If you do the little jobs well, the big ones will tend to take care of themselves.
It is never too late to be what you might have been.
Do nothing from selfishness or empty conceit, but with humility of mind regard one another as more important than yourselves; do not merely look out for your own personal interests, but also for the interests of others. Phil 2:3-4.