Over the many years I have read many excellent books for developing and achieving a Success Mind Set. One of those books is Law of Success by Napoleon Hill. We know, that when one begins to repeatedly do an action or activity over and over, it becomes a HABIT (good or bad).
Using the Law of Habit is powerful for one to be able to create their Success Mind Set through auto-suggestions and affirmations. For the past 30 or more years I have been making it a daily HABIT to read an hour per day, plus speak, visualize and take appropriate ACTION on my own affirmations based upon my Definite Chief Aim (goals and targets).
Be sure to look at your own Habits and make sure they are moving you towards the direction you want. If they aren't, then you should make the appropriate actions to change it through replacing it with a new habit.

"Success isn't a matter of chance!
It's a matter of the choices you make!"