Nothing to Fear But Fear Itself?

Can I confess to whomever actually reads this that I still don't know what I want to be when I grow up?  Sure, I have some ideas floating around in there that seem rather childish because they're the things you declare when you are, in fact, a child as you have you're bed sheet tied around your neck or a cap gun attached to your hip.  To be a professional athlete or a veterinarian or a photographer or a journalist still seem rather far-fetched, like I'm starting too late...and I just don't see it in the possible future.  While considering my options I'm stopping myself halfway through prospects at the thought of how realistic my expectations are, or aren't.  I have a voice in my head that's telling me that if fear is what's keeping you, then that's a sure sign that you should follow through with it.  But is it really?