Have an Answer?
I would agree, the key to find something that you love to do. From my experience success is fuel by passion. If you love something enough you will give your all and not give up until you reach your goal. You will be surprise, there money to be made in everywhere.
My advice is your still in high school, enjoy that moment and live it out your youth. As you do it with a smile on your face, slowly you will see the things you love to do in life and from there it will lead you right path. Everyday try to do something to make yourself a better person and take it one day at a time.
I'd agree with much of what Rachel said. The key is to understand what you like to do. What subjects did you enjoy in school? (Don't focus on the subjects that you did well in but were indifferent about; focus on the subjects you liked, including subjects you liked to read about or engage in outside of school.) Speaking as a 40 year adult, the most important thing everyone needs in their job is that they enjoy what they are doing. Not only are people happier doing work they like, because they enjoy that work they tend to it better than people who don't enjoy it, even if other people are smarter or more skilled in that given area.
One more specific suggestion I have is that you could buy a career guide book. One of the ones that I have used at multiple times in my life is called "What Color is Your Parachute?" by Richard Nelson Bolles. That book helps people identify the job field(s) they'd be most interested in (as well as ways to potentially network with people in their preferred job fields).
One final note - throughout your life, don't be afraid to switch jobs or careers. Sometimes the job or career you enter isn't what you expected and you need to do something different that is a better fit for your interests and skills. Life is fundamentally about learning about yourself and working to continue to grow as a human being and be the best person you can be. You are more likely to be the best person you can be if you are doing work you love and are passionate about.
I would recommend to visit a book store and read up on some careers that are out there. Ask your self questions, such as:
Do I like human contact? (psychology, social work)
Am I interested in science? (physics, biology)
Do I want to help people? (psychology, physicians, nursing)
Am I good with computers? (technology, computer science)
Do I like math? (mathematician, architecture)
and so on..
Just remember, what is most important is that you like what you do. If the bookstore or these questions do not help answer your question, than maybe apply to a college and start out your freshmen year taking random courses. You will definitely find your answer after a year of college exposure to different fields.