I really like this:

Our deepest fear is not that we are inadequate. Our deepest fear is that we are powerful beyond measure. It is our light, not our darkness that most frightens us. We ask ourselves, 'Who am I to be brilliant, gorgeous, talented, fabulous?' Actually, who are you not to be? You are a child of God. Your playing small does not serve the world. There is nothing enlightened about shrinking so that other people won't feel insecure around you. We are all meant to shine, as children do. We were born to make manifest the glory of God that is within us. It is not just in some of us; it is in everyone. And as we let our own light shine, we unconsciously give other people permission to do the same. As we are liberated from our own fear, our presence automatically liberates others.(strike through's mine)

Except for the child of God and glory of God part, it is a really good thing to remember, especially during exam week. I first heard it in the movie, Akeelah and the Bee(nice feel-good flick) and was supposedly from Nelson Mandela who got it from Marianne Williamson.

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To anonymous: Mess = my grades. They're not so bad(at least, I'm not failing), just well below what I am aiming for.