A pharmacy major is chemistry intensive, so it is imperative that you master your basic chemistry courses. Most Pharmacy courses have some component of chemistry. Examples from one pharmacy school curriculum:
Clinical Biochemistry
Fundamentals of Medicinal Chemistry
Medicinal Chemistry I
Medicinal Chemistry II
Structure and Function of Nucleotides: Basis for Therapy
etc.
I agree that you should seek out a tutor for chemistry and work hard at mastering the subject. BTW, some Pharmacy programs does not allow grade forgiveness, “which means that grades for multiple attempts for the same course number will be averaged together for that course.”