Watch your thoughts; they become words.
Watch your words; they become actions.
Watch your actions; they become habits.
Watch your habits; they become your character.
Watch your character; it becomes your destiny.
The above quote has been attributed to a variety of sources; however, upon researching the quote on the internet, I was unable to conclude in my own mind as to whom is the true source.
Would you like to give it a try? If so, I will give you a starting point, just click on this.