The career that you choose must be one that you like. Although it’s important to make enough money from a career to live comfortably (if this is possible), the career must also be enjoyable. You’ll probably be working at a job for many days every week (except during vacation time) and for many years, so it’s important that you like what you’re doing.
Perhaps you could talk to a career counsellor in your school to ask them questions. You might be able to contact people who work in the careers that interest you and ask them about what they do every day and what the benefits and disadvantages of the career are. Some schools and colleges have career days during which different organizations and companies have displays. These events could be useful to attend. Doing lots of research on the Internet and in libraries about specific careers could also be useful.