Are you attending high school in the United States? If so…what is your GPA, weighted and unweighted.
ETA…I read your other thread and the good explanation @skieurope provided about IB numbers.
That being said…congratulations. You have done very well. It seems you are an international student.
Just keep in mind…the acceptance rate for Amherst is 9% or so. While you have achieved everything to be a successful student there, so do a LOT of other applicants…and 90% do not receive offers of admission.
But…apply and see!