Do you really want to become something in the medical field........
Be sure to look for the right school, and be sure to start at a school or university where they can give you the education you need to get the end result you want. Although you might end up in a complete different field it is nice to know what you might get. Knowledge counts.
For better results consult your peer group.
They will give you advise.
It might confuse you in first instance, but later on you can make a better decision when having a complete view of your own capacities.
What is next.
Find a country where you can achieve your goals. Find a city where they have accommodation for foreign students. Find a way to pay your for your education. Different countries have different financial obligations to follow higher education for the job you might envision. Be sure to have a positive attitude when asking for information at the school or university of your choice. They like you because you show you like them.