My career path: my DOB is 4 sept 1998 and I'm a female.

Sana, why don't you take actions right now to pursue your dream? Study hard to get better grades and you will get into the university to learn useful knowledge for your future. With professional skills, you will find a decent job and make your family proud of you. Good luck!
There should not be severe illness this year. No worry!

Will I succeed in choosing the right subject? I mean I've decided to resit my year to do maths, art,sociology but I want to continue studying business as I did it last year. Shall I drop art and continue studying business? Is that a good choice? That means I have a lot of catching up to d. Will I be able to cope?

Sana,
Write your complete date of birth, with the hour and minute and the place of birth (or the closest big city to it.) We would be able to do your chart and see what are you good at, and not what friends tell you you should be. I'm not surprised you are getting poor grades. This is your opposite year. Whatever
you try to do this year, it won't work. My advice to you is to wait until the end of January, when the year of the Fire Rooster starts. After that, you would be very lucky.