A good way to create positive self talk is through affirmations.  An affirmation is a positive statement that represents your desired condition or outcome.  Interesting enough, your subconscious mind does’t know the difference between a real experience & a vividly imagined  “mental” experience.   World-class athletes understand the value of affirmation & recognize the impact of their mental preparation on their physical performance.  They use the power of positive affirmation to reduce anxiety & increase their expectation of achievement.  To be of maximum benefit an affirmation must be simple, encouraging & stated in the present tense.  By repeating an affirmation over & over again it becomes embedded in the subconscious mind.  A positive affirmation might be “I take good care of my clients & they show their appreciation by referring their friends to me”.  Say in the present tense & say each morning & evening before falling asleep.  Feel the emotions associated with the affirmation.