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While I am not a doctor quite yet, I can tell you that working with patients takes a lot of patients. Everyone has different personalities, cultures, and expectations that you have to deal with. That being said, it is a very rewarding experience for a people person.
Your next step is to talk to your school's pre-med advisor. You can find them through Google, friends, etc.
Then find out which classes you need to take: usually a year each of chemistry, organic chemistry, physics, biology, math, and english plus the labs where they apply.
Finally volunteer in the community, shadow doctors, and try and have fun. Find a passion while keeping you grades up. The journey to medicine is long but rewarding.