Worldview

What makes up a worldview? What are the prevailing worldviews in our society today?
How does one make sure they have a biblical Christian worldview and not a cultural Christian Worldview? How should Christians go about the battle against the secular humanist worldview that dominates the culture, so much so that it is often present in American churches? Psychology, is it okay to integrate with biblical counseling? I am beginning my research to determine the Biblical response to these things.