Affirmations, truly, are simple. They're you being in conscious command of your thoughts. They are brief, mighty statements. If you say them or think them or even hear them, they get to be the thoughts that produce your reality. Affirmations, then, are your conscious thoughts. Get all the info you need here

Research has demonstrated that we have between 45,000 and 51,000 thoughts a day. That’s about 150 to 300 thoughts a moment. Research has likewise demonstrated that for most individuals 80% of those thoughts are damaging.