Have a read at this article from Zen Habits, "Are These Three Words Ruining Your Life?".
This is so applicable to me at the moment.
I keep saying "I don't know" what I would love or like to do for a living. The fact is if I keep saying this, I will never know.
It's time to change it to "I will find out" what I want to do instead of waiting and hoping for it to fall on my lap (in a million years time).