Are your dreams & goals your own?
External motivation is the weakest motivation. It is motivation that comes from others to you. It is the motivation that comes from others pushing you and not you pushing yourself. It is motivation that is driven by external reward or punishments. External motivation is your husband or wife telling or asking you to lose weight. External motivation is your parents making you go to college. External motivation is your boss demanding you attend a meeting you'd rather skip. External motivation is forced and is not altruistic.
Most dreams and goals driven by external motivators are not reached. They are not reached because they are not your own. You did not initiate them. A dream must be your dream or it stands the grave likelihood that it will not be reached and Champions reach their goals. Be a Champion!