Id like a career in mma?

Your a good age to start. I knwo where I live you can compete in MMA events at 16. If I was you I would join your high school wrestling team this year and learn all you can. Then I would join a BJJ MMA gym. I think you should get in and fight ASAP. As an amature its not about winning its about figuring out if its for you and what you need to get better at.