Exam success and career prospect

My name is Radhika Srivastava, born November 1, 1996 at 10.56AM Baltimore, Maryland USA.
i am trying very hard to get admission in medical college to study to become a doctor.
i took exam for it in March this year but did not do well.
I am taking the exam again on June 20, 2020 and hoping i will do well.
Can you please tell me if i will be able to well on this entrance test on June 20th and also if i will be able to get admission to medical college to study to become doctor?
Thanks