Best way to change self talk is with your own voice talking outloud throughout the day. If you listen to a paraliminal Like Talking To Win or Automatic Pilot it will help but you need to exercise controlling of your thoughts for the rest of the day I suggest buying a motivaider and using switchwords.Before you go to bed talk positive to yourself in front of a mirror for ten minutes.Dont try to force results that will be like planting a seed and digging it up everyday. Make it a goal to have a positive mindset and give yourself a deadline.