A good book I've read would be 'Rich dad, poor dad' by Robert Kiyosaki.
I really liked his advice on our attitude towards making mistakes. In his book, he said:
"“In school we learn that mistakes are bad, and we are punished for making them. Yet, if you look at the way humans are designed to learn, we learn by making mistakes. We learn to walk by falling down. If we never fell down, we would never walk.”
and also
“Winners are not afraid of losing. But losers are. Failure is part of the process of success. People who avoid failure also avoid success.”
and it is true. In the real world, we have to understand that sometimes we have to take risks and both outcomes of taking risks are a win-win situation as long as you make the best out of your mistakes and failures by learning from them.
I have realized that most of the improvements that I've been proud of are the result of learning from mistakes.