From Young & Twenty, a new favorite:

Your family may fight but it shows that they’re there. Your job may be boring but it means you still have one. Your skin may be flawed but it means that you’ve grown. Your mistakes may be bad but it means that you’re human. Your smile may be temporary but it means there’s still hope. Your life may be hard but it means that you’re living, and the fact that you’re living means you’ve done something right