I am a professional photographer
(website) and as others have said, it is a ridiculously difficult profession to get into. That said, if you have a passion for it, well... nothing competes!
Don't get me wrong - I consider myself successful - but even then, I do other things to supplement my income. I'm not sure what earnings are like where you live, but over here, EMTs don't make a lot. I'd be surprised if you made more let alone the same $$$ as a photographer. Granted, I do more of the fine art and documentary side of things, so being able to show at galleries take precedence over just making money, but the main difficulty for any photographer is finding steady work. Weddings are good, but a ton of work, and that really has to be your passion if you're going to do it well and not get burned out in the process. Being on retainer for commercial jobs - whether that be automotive photography, food photography, real-estate photography, or something else - is good too. Hard to find, but very helpful if you want to make a steady income as a photographer.
I had two years of formal training, which really helped me hone my "eye" - both with technical skills and aesthetics. Beyond knowing how to use a camera manually and get the most control over your image, I wouldn't consider schooling to be a necessity, though it can be very helpful. I second the online courses option. Community colleges can be very hit or miss. That said, if you have a passion for photography, you're half way there anyways!
If you have specific questions, especially technical ones, I'm always happy to answer. Feel free to PM me. :-)