I am still searching for my passion too.
So the thing is that i bet there are more people on the planet who don't even bother thing about it, not event talking about searching or finding it. I am saying that because i am really getting frustrated about it from time to time. Its nasty. You need to choose one thing, like should i, but it needs a lot of emotional control to make that decision and stick with it. Like Leo said. And most likely with will be more difficult to make as we grow. I think i am most scared of making the wrong choice and wasting my time, sort of. As a matter of fact that i am 20 years old, kind of young,
Finding your passion for me means to neglect your other areas of life for a while, let just say. So what that means is probably giving everything by working, studying and practice the "one thing". In the meantime you should not distract yourself with a lot of side activities. That is pretty annoying, and i am really confused about it. How to manage all your ares of life at the same time during that "finding purpose of your life" process and not only, maybe developing yourself furthermore and so on.