A career is often considered to be the work you do during your life. This can refer to a single occupation someone remains in for the entirety of their working life up until their retirement. But what if someone is a teacher for 10 years, then becomes a pilot for a couple of years and then starts their own business running a pilot training college? They are said to have changed their career three times. But although they have had three very different jobs, they are still said to have a single career.
So your career can refer to any number of jobs and things you do to earn a living. In fact your career is best regarded as a journey, starting with your first job and continuing until you retire.
So a more accurate description of a career might be all of the things you do that lead to any type of work or employment during your life.
And guess what this means - you've already started on your career journey! It might surprise you, but much of what you learn at school, including the skills you develop, will be used in your future work. You may already have preferences for certain types of subjects and skills (for example, science, business or art). Building up an awareness of these preferences will help you to uncover the types of work which you will be most suited to and find most enjoyable in the future.