Share 'What's the *worst* thing about being over 30?'

Totally copying Darlene's idea here... Anyway, for me, it's definitely the feeling that if I screw something up I can't just "try something else next year." I've had 4 or 5 careers already, which of course means I've done exactly 0 career advancement. (I'm a SAHD now, yay! Best boss ever!) Anyway, I'm starting to realize that an entirely fresh college degree is probably out of the question, t...