Just for starters only, I suggest that you try the personality test I have copied below. You can find it easily on Google. You can also read about the Briggs Myers (sometimes called the Myers Briggs) test on eNotes by clicking on the reference link below. The Humanetric test is just a sample. It consists of 72 questions about yourself and is intended to indicate what kind of personality you have and therefore what kinds of careers would be most compatible.
If you are in the eleventh grade, it is understandable that you are starting to worry about a career. This is about the time when the high schools ask students to declare a major. You have to start thinking about who you are, what you like, what you don't like, and where you think you want to go in life. However, you still have plenty of time to make final decisions, especially if you plan to go to college.
Most colleges and universities have career counseling services, and I should think there would be some such counseling even at your high school. It is well worth your while to give your career decisions, and even your decision about a major, a lot of thought; because it gets harder and harder to change as you advance in school and later as you advance in life.
Personality test based on C. Jung and I. Briggs Myers type theory provides your type formula, type description, career choices.
This is a website that asks many questions that are specific, that helps you get an idea of a job that intrests or and at least in that field.