Nine times out of ten, things won't work out the way we thought or planned. Learn to use wisdom to solve the trouble somethings, and do not develop the habit of complaining and whining. The great Mao Zedong wrote a poem: "Too much whining may break one's intestines, and it would be better to be broad-minded and have a long term vision". It means that when things go wrong, too much complaining will harm one's physical and mental health. One should see things with an open mind and a long term vision. In a word, to a big mind, there is no such things as "big".