We are either our best supporter or our worst enemy. Changing your thinking starts from within. If you want to become more positive, more successful, you will need to change your thoughts, and how you see yourself.
Master Salespeople are always hardest on themselves, but they know that a constant stream of negative thinking is extremely corrosive towards any possibility of them achieving a positive and successful life style.
They look at failures as challenges to look for a better way; for they know that with every success, there may be a multitude of failures.
They continually analyse their self- thoughts, weed out any negative thoughts, and re-place them with positive affirmations.

“Watch your thoughts; for they become words.
Watch your words; for they become actions.
Watch your actions; for they become habit.
Watch your habits; for they become character.
Watch your character; for it becomes your destiny”
― Lao Tzu