Well, you could be right. I think inherent in the advice I gave above is the idea that it might be too harsh but people who prepare for the worst sail through situations that are easier than the one's they were prepared for.
That said in my observations of the world I've found changing yourself is the hardest thing anyone ever has to do. That's why the astronaut who was successful enough to beat out everyone else in the country can't seem to kick his smoking habit. Or how a guy who managed to become President of the United States TWICE, which is not easy to do, can risk it all for a brief liason with an intern.
Bottom line: Our own vices are generally the hardest opponents to beat