Get in school, there are few jobs in the world where you go to school for a few months, work awhile, go back to school, work awhile, go back to school, work awhile. Most schools produce educated employees that are green for whatever field they are going into (Accountant, RN, Lawyer, Teacher, etc....). But if you are truly concerned that you may not like the job, then I would vote as the others and continue working while taking some core classes, then go to Paramedic school when you are sure. And don't listen to all the "burn-outs" who try to talk you into going to nursing school instead.