Many of us try to change bad habits quickly, and if we are not successful straight away, we often become pessimistic and give up. In fact, the （successful） way to change is not suddenly, but over a period of time. the Chinese philosopher Lao Zi wrote, "A journey of a thousand miles （begin） with a single step. " One step seems small, but it is essential. （reach） the goal of change, a person must show some discipline and （repeated） take many small （step）. After all, is not easy to break bad habits.

For young people, there is plenty of time to change bad habits. However, there is no "magic pill" or delete button will help you; you have to think about your bad habits and decide some changes. You have the power to build happy and healthy life full of good habits!