I would suggest going to your local community college and investigating the possibility of taking a Basic EMT class. If such a class is available, you should check with your local EMS service to see if they use volunteers. If so, get the EMT training, get certified and volunteer your time as a Basic EMT to get some experience. Most states require some minimum amount of experience (usually one year as a Basic EMT) before they will let you apply for Paramedic training. If during this time you find you are cut out for this type of high stress work environment, then proceed with getting into some accredited training. Expect the Paramedic training to take anywhere from 9 to 24 months depending on the program. You should expect tuition and book costs to exceed $4000.00. Once certified, it really is not difficult to locate an employer as most systems are constantly recruiting.
One other viable alternative is to find a volunteer opportunity as a Basic EMT with a local system that would be willing to pay for your Paramedic training. We do this in our system but require a contractual agreement for services following certification.