To succeed, you must have tremendous perserverance... tremendous will. "I will drink the ocean", says the perservering soul; at my will mountains will crumble. Have that sort of energy, that sort of will; work hard, and you will reach the goal.
If you want to change the world, first try to improve and bring about change within yourself. That will help change your family. From there it just gets bigger and bigger. Everything we do has some effect, some impact.
I have had my share of sorrows-more than the common lot, perhaps, but I have borne them ill. I have broken where I should have bent; and have mused and brooded, when my spirit should have mixed with all God's great creation.