If it's something that you are good at, and enjoy doing...then there's your answer.
How do I recognize that if a job could be my career?
Just make sure to educate yourself in a career field that you enjoy
In general, you 'll find a job of what you have studied, of course, you like what you do so that's your career.
But there are some people who can't find a job of what they have studied then they do others. The main is a job which you do and you feel interesting with or enjoy doing it.