I'll let you know when i figure that out.
But seriously, this is something i've thought a bit about, so allow me to expatiate for a moment:
My choice as far as education and career was pragmatic; I knew there were jobs in the field, stable career for the most part, it paid pretty well, and I liked it okay and was decent at it (I won't go as far to say as it was my passion or i'm a natural at it, because neither of those are entirely true.)
I will say however, and i think it's important to realize, that work does not necessarily need to define life or identity. Sure, it's important to do something you like and are okay with, as about a third or more of your waking hours are spent working during most the week. However, it's not the end-all be-all of your identity or activities. You have hobbies and other things you do outside work.
Some say/believe "do what you love, and you'll never work a day in your life." However, I believe for most of us that's a largely romantic and fanciful idea. Sure, it sounds great, but for most of us, we don't have one consuming passion, and, even if we did, it may not make the best career or provide the kind of lifestyle we desire. That being said, I know some people that do have one (major) passion, pursued it as a career, and are loving it and doing well off it. I'll have to be honest and say i'm envious of those.
For most of us however, it's not that cut-and-dry. I read something once (and although it was a bit of a generalization) that stuck with me; it went something like this:
"A man largely needs three things to be happy and content: Something to keep him occupied and earn him money [a job], Something to keep him active and healthy, and Something to keep him creative and inspired."