I do think about aging. I have those moments of panic and vanity, but life keeps getting better, so you can't worry about it too much.
I started auditioning when I was about 10 and I didn't get my first job until I was 12, and two years at that age is really hard.
Now, on the St. Louis team we have Who's on first, What's on second, I Don't Know is on third.

