I read widely this past year, and as I look back I see a pattern in the topics to which I gravitated. Three books in particular were the most helpful.
We give up on things when we stop caring about them. Letting go, however, does not mean one does not care, but rather that one accepts the situation and works to clear the way for something better.
No one likes to fail, but stepping outside of our comfort zones and allowing ourselves to screw up is necessary for achieving great success.