Worry, frustration, confusion, sleeplessness and fear are all components of the chaotic mind, making just one simple goal difficult to achieve and hindering success.
There is no success in a mind of chaos. One needs to attain peace and calmness in the mind in order to encourage positive thoughts.
Normally one finds it very difficult to manage and control the mind. Sometimes, one may feel that the mind is similar to a balloon, blown by the wind, taken to any direction and circumstance the wind takes it. When things come out well, the mind is contented, but when things go badly, instantly the mind becomes very unhappy.