I'm one of those people who, when growing up, never knew exactly what they wanted to do (and was always a bit envious of the kids who did!). As a consequence, I have become "a jack of all trades but a master of none." I am a writer, illustrator, teacher, and amateur actor. If you can relate to one of those avocations then we probably have something to share.
I have learned it is not enough to "love what you do" but, rather, you want to get to a place where you "do what you love."