Sounds like Years of College Parties…
Medical Examiners are physicians who have specialized in a field called pathology. The path in the US is:
4 years of college
4 years of medical school
3-4 years of pathology residency (depending on the track)
1 year of subspecialization fellowship, e.g. forensic pathology
So that’s a total of 12-13 years of school and training…nevermind a lifetime of having to continue to study on your own and periodically retake board exams to recertify. If school isn’t you’re thing, this probably isn’t the career for you. You could consider working as an ME’s assistant or other sorts of lab tech work that would require less school and training (but then would also pay less).