How did you know when you got your "calling"?

[texas*princess]

Here's the deal... I'm currently studying Computer Information Systems with a bunch of programming stuff. I used to enjoy it, but recently, I just don't think it's what I want to do for my life.

I've been thinking about going to law school and going into corporate law.

So here's the question... what was your "calling" and what made you want to do it?