There are HUNDREDS of jobs where you can “help people” if that is what you really want to do. And there are lots of medically related fields,…not doctor…where you can help people.
Please…think of a better reason why you want to be a doctor.
I think you need to spend some significant time shadowing a doctor. Then spend some time with a nurse, PA, APRN, and see what they do in the medical field.
If you really want to help people…what about social work, teaching.
Helping people and working are not necessarily go together items. You can significantly help people by volunteering your time and expertise with Habitat for Humanity, your local soup kitchen, a homeless shelter. Become a big brother/big sister and mentor a student.