It would not be necessary to make an affirmation more than once if one had perfect faith.
You will be a failure, until you impress the subconscious with the conviction you are a success. This is done by making an affirmation which 'clicks.'
Man can change his conditions by changing his words.
Through his spoken word, man is continually making laws for himself.
Words and thoughts are a tremendous vibratory force, ever moulding man's body and affairs.