Depends on what kind of mediation you are looking to go into: family, divorce, small claims, corporate, etc. When you know your focus you can look into taking relevant courses to get background knowledge in those areas.
You should look at college classes. Try to get into the best college you can afford and you will sure to be in good hands as the professors are generally excellent at what they do.
You should go to culinary school.
... you must go through about 13 years of college...
If you want to become a realtor you should contact you local community college or university. They offer classes to be a certified realtor and they should also have information on where to find the classes elsewhere.
If you are going to a holistic college, they have a program already lined up. If you are in a regular college, you should take nutrition classes and any classes like anatomy and physiology.
College classes needed to become a psychologist include general studies. They also include psychology, sociology, and anthropology, as well as science courses.
You have a lot of science classes and physics you also have to have four years of college and a bachelors degree.
Most colleges require college algebra and stats as a requirement. However, you should go to your college counselor to see what classes you should take to become an accountant.
Get your college prep classes done and any AP classes in history and work on your writing and research skills.
Take college prep classes because you will need to go to college and medical school to do this job.
One who wants to become a police officer should try to focus on criminal justice classes. This includes classes like Criminal Law and Conflict Resolution.
History, political science, sociology, business, to name a few.