You are who you are. No one is perfect, and no one is strong enough to withstand a devastating event by themselves. A friend could be going through something hard, you yourself could be going through something terrible, but in the end it gets better. A sudden light of realization will hit you, a light of sadness, happiness, anger, then stupidity come upon you. You realize the better things in life, and worrying over one small thing could lead to an event of many big things.