I've never been good at self-delusion, which is why I'm not religious but that's a topic for another forum.
While I want the Cowboys to win, I can't talk myself into believing that Booger & Son - with their quarter century track record of failure - have finally outsmarted the rest of the NFL. I will watch every game, but I'm not buying anything until I see it actually happen. If that makes me a "bad fan" in someone's eyes that's their problem, not mine.