Talents?

I'm reconsidering going back to school to become what I thought I wanted to be when I grew up. (Apparently there will be a lot of job openings in my preferred field within the next 5-10 years, and the increase in technology has changed the job but not negated the need for it. On the other hand, maybe I'm too old to bother with finishing my degrees at this point?)

Anyhow, reminded me of a insightful bit from "Confessions of a Master Jewel Thief," by Bill Mason:

"I think what's actually going on is that childhood is like an allergy test for talent. If you've ever been tested for allergies, you know that the doctor rubs your skin with hundreds of different substances until one of them raises a welt. In the same way, a kid comes across hundreds of opportunities to uncover some latent talent until one of them hits, and then his course in life starts to take on some direction. Sometimes it's obvious, like when a seventh-grader is six feet tall and can dribble a basketball blindfolded with either hand, or a grade-schooler builds a radio out of old washing-machine parts.

Sometimes it's not so obvious, as in my case. I could climb trees like a monkey and take apart all kinds of machines and put them back together; there was little that frightened me and I could keep my mouth shut while listening. But so what? How did these things add up to a career?

It wasn't until I went out and tried to steal something that I realized what my odd collection of skills might be good for."

Sigh. Unfortunately, that doesn't help me decide in my situation...I know I have interest and "talent"...Now I'm up against the calendar. Suggestions?