I've been searching around on the other threads but I have a question. I know that you have to be 18 to get your license so when should I start taking the classes?
It all depends on what state you are in. If you want NREMT, you have to be 18, but in my state (NJ), you can obtain a state certification at 16. Actually, thinking about it, NJ did away with the National Registry test recently so you can be 16 and an EMT in NJ
You can take the class and test at 16 (in Georgia at least), but no service is going to hire you until you are 21. I got my EMT at 17 and couldn't get hired for anything but a patient care tech, and that was in 1993. I am sure things haven't gotten less restrictive. Thank you insurance companies.