After reading your question, my opinion is that you'd better not choose these two majors, because they are both difficult.

Broadcast hosts need to pay for study and exams. Looking for a job after graduation requires family contact and your own efforts. This is too difficult for a little girl.

To learn aerobics, some universities accept aerobics majors, but there are not many good ones. Good schools also need a lot of money and employment is also a problem. Being a coach is not a long-term job, and a physical education teacher is just a stable job without a high salary.

Now study culture well and wait until the third year of high school to see your own development.

good luck

Sincerity comes from Hasui.