If that formula was sureshot for everyone, im sure no one would consider high school even as a faint option, let alone studying hard.
Oh and you're not stupid, just moody, that's okay, i guess, but not what is right for everyone/works for everyone.

Edit : Raisor, you can give me AP's , but after a while. Just grow up on your greenies a bit and then neg me as much you wish.