Your parents want you to become a doctor, but do YOU want to become a doctor?
Do something that makes you happy, and it'll be better in the long run. :] But let me tell ya, we really need doctors right now. Since there's a shortage and whatnot. x_x
To become an undergrad, there are general courses that everyone must take which include: US history, government, math, science, english composition, the arts, and many others. So, English is a must. -nodnod-
I'm a freshman in high school and I'm starting to look into colleges that specialize in the field I want to be in, which is engineering. Universities look at not only grades, but extracurricular activities, test scores, etc, etc. Universities look for someone who's well-rounded and will represent their school well.
I'll let you in on a secret. Universities think it's more impressive to see grades that improve over time than maintaining a grade all four years of high school. So, get the grade in English up!
Good luck! : D