Instead of making definite decisions about a career path, I believe you should get curious. Get curious about the way the world works. Notice your own interests and find small ways you can exercise passion in something. Even if you can't find a way to make money off of it yet.
The bridge from passion to money-maker can't be made hastily. Interests often get discarded because they cannot be immediately relayed into a source of income. And therefore aren't as important as work that does.
Blogging is a great example. I know many bloggers who want to go pro. They want to take the interest they have and turn it into a passionate source of income. But blogging isn't easy. Even the most rapid successes I've seen, took over a year before the author could claim blogging as more than a hobby. And those were due to writing talent, luck and an incredible amount of work.
Patience is a necessary ingredient in evolving a passion. But even more, you need to be open to other possibilities.
Interest to Income Isn't a Straight Path
80% of new businesses fail in the first five years. But more interesting, is that of the 20% that succeeded, most didn't do so in the way they had expected to.
Before setting up his immensely popular website, Steve Pavlina believed he would make most his revenue through products and workshops. But close to five years later, he makes all of it from advertising and affiliate sales. A revenue prospect he downplayed when making his business plan.
Similarly, I don't believe that most people's passions follow a straight path. Scott Adams began with a degree in economics and a position in a bank and now he is the successful cartoonist who created Dilbert