No, because you'd be trapped in a cult of selfishness. A religion of self is a very bad place to be. I am not a self-contained sovereign god-being who just miraculously actualizes the positive reality I envision.
Yes, positivity is essential, and negative thinking is also a trap, but this "Believe In Yourself!" and "Follow Your Passion!" is rotten fruit from the $16 self-help bookshelf in the public library.