Answer:
I make you weak at the worst of all times. I keep you safe I keep you fine. I make your hands sweat and your heart grow cold. I visit the weak but seldom the bold.
I am one with eight to spare, lest I lose my one. I'm not a number. What am I?
I direct you from outer space.
Sometimes I annoy you, sometimes you can't live without me. But no matter how hard you try, you can't destroy me. What am I?
Against the sun I protect your eyes and am often worn on the face of spies
Give it food and it will live, give it water and it will die.