Hi,
I would when choosing a career that your highest priority is enjoyment and being passionate about that career, as your more likely to do better in career that you enjoy than a career that you don't. Of course, money is in an important factor but it shouldn't be the only factor that you consider. In most jobs you can get to a high salary after gaining experience and building on your skills and responsibilities over the years.
Have you spoken to your school careers team? They will be able to help you and see what might be the best sort of career for you. You can also change your mind if you find that the career you have chosen isn't for you anymore, and that's absolutely okay!
I would also recommend to have a look around at seeing if there's any work experience opportunities, as this is great chance to see what it would be like to work in that job, as well as it looking good on CV's
Hope this helps,
Suzan - Student Ambassador