The first game I was really intimidated. I was thinking just defense. This time I was thinking both offense and defense. He's a Division I player, you have to be intimidated.
I think it's better to have ideas. You can change an idea. Changing a belief is trickier. Life should malleable and progressive; working from idea to idea permits that. Beliefs anchor you to certain points and limit growth; new ideas can't generate. Life becomes stagnant.
I've always kind of ripped from real life to some degree or at least how I'm feeling in the moment. In fact, maybe that's really it. In anything I've ever written, all the characters sound like me, which I don't think is a bad thing.