I can see how this sort of 'optimism manifesto' would be something that triggered you, that "N" statement would have triggered me, too. The "if you believe it, you can achieve it" mantra has its place, but it can only take you so far. It's important to remember that you didn't "become" a victim in the transitive sense. None of us chose that for ourselves. You were victimized and that is one situation in life you don't have to feel responsible for.
You don't have to accept prepackaged advice from a handout, especially from a dude who is mostly just famous for making chocolate chip cookies--something anyone can do, really.
“If a man wishes to be sure of the road he treads on, he must close his eyes and walk in the dark.”
- Saint John of the Cross