it's Just like saying that the stories we believed from the ones we were told goes a long way in determining how we interpret the stories we're going to be told later.

Yes. And we are conditioned to believe some stories over others, about religion and culture, preferences and prejudices. And then we think that our story is the truth, and will fight and die for an illusion, believing that we know what we are doing. So much good and so much harm can come from the stories we tell ourselves and act upon.