Every once in a while, I'll look in the mirror and be reminded of this Seinfeld dialogue:
KURT: Elaine said you would be the best person I could talk to.
GEORGE (examining Kurt's head with a lamp): Yep. Classic horseshoe pattern. I've seen a lot of this.
KURT: Oh, God.
GEORGE: No, no, Kurt - wrong attitude. You should be happy now.
KURT: Happy? Why should I be happy?
GEORGE: You've still got pretty good coverage. Once the enemy advances beyond this perimeter - <points at Kurt's head with a pen> - then you won't be Kurt anymore.
KURT: Who will I be?
<George points at himself. Kurt shudders.>
KURT: How long do I have?
GEORGE (solemnly): 14 months. Maybe 10.
KURT: Is there anything I can do?
GEORGE: Yes. Live, dammit. Live! Every precious moment as if this was the last year of your life. Because in many ways...it is.