This was the quote of the day on my iGoogle page and reading it made me feel so reassured -
...do not distress yourself with dark imaginings. Many fears are born of fatigue and loneliness. Beyond a wholesome discipline be gentle with yourself. You are a child of the universe no less than the trees and the stars; you have a right to be here. - Max Ehremann (excerpt from the poem "Desiderata")
Actually, the entire poem is quite lovely and makes me feel good, but when I read that little quote I just went YES.