95% of your time we are doing things in a habit state. Which means they are automatic and not controlled. So most of the things you do, are learned in the past and practiced during the present. Improve your behavior and thoughts by creating a new habit of positive and constructive thoughts starting from the morning.
Start this challenge every morning when you tie your shoes. First tie the shoe that you usually tie last. It will act as a reminder to focus your thoughts on a new habit.
Read and repeat all of the tasks in your mind during the morning. Try to act on them for the whole day.