I am by no means trying to dissuade you from your your dreams, if you want it, you can do it. Believe me, I embrace this mentality. With that being said, you need to give consideration to reality.
Saying "I will just become a FF so I can get hired" is not that simple. Do your homework please and make plans based on that. Set realistic goals for yourself and then analyze why you want to do things your way versus a different way with same end result but less hardship.
Let's take your FF comment:
1. You need to apply to the Fire Academy...in FLORIDA. These are offered at most of the community colleges and there are a few stand alone private outfits. There is a competitive process to get in these programs! There are waiting lists. If you go private to get faster schooling you will pay more, but that may be one way to get to where you want to be faster.
The Academy full time is 3 months...this is M-F full day evolutions. You have very little time for any work, keep this in mind.
Part time academy is a few nights a week (mine was Tues, Wed and Thurs and all day Saturday...with a sometimes Sunday). These schedules are doable around someone's full time work schedule, but still very exhausting.
You will find various schedules offered, again you need to do your homework. Once you graduate their academy and pass their final...you now need to be tested by the State. The state usually comes to your school and tests you there, however I have seen/heard of a few shady outfits which graduate you then tell you good luck and now it is up to you to find a way to test...this is not an easy thing to do as there is both a written exam and a physical test. Stick with the colleges and no issue.
2. Now you are a FF/EMT...what to do? Apply! Apply everywhere!! Why? Because literally there is NOTHING unique about your skill set. I promise you for every 1 job opening advertised, there will be 1000+ applicants especially in S. Florida. You will have guys who already have been working on departments trying to cross over, people with years experience, it is VERY competitive.
If you focus on smaller departments, more rural counties, etc...you have a much better chance of getting hired. Stepping stone...everyone does it in FL, a few decide they like it and never leave...but the younger generation come and go. Most do not stop being considered a new hire until after 5 years...after that they are probably gonna stay! LOL
There is nothing wrong with this, it is your dream...get there however you have to. But it is tough. Doable but tough.
Keep in mind, while you are going to FF School and struggling to work as an EMT, you are NOT entering Medic school! You are delaying what your end goal is.
Network, get on many websites and ask and ask! There are some departments (less these days) who will hire a paramedic and then send him/her to fire school. This is a good situation if you can find it. You will not find a department in such dire need of an EMT that they will send one to FF school, there are just far too many applicants for that.
Without knowing much of your situation...I am going to make an assumption here. You are single with no kids. If this were me, I would hit central FL or way further north in the rural counties. The cost of living is lower and the likelihood of getting hired as an EMT is high. I would ensure there was a community college close enough (within an hours drive or so) that offered both Fire Academy and Paramedic School. I would do paramedic school first as it is the more challenging and fastest way to increase my paycheck. (It also gives you preference when you apply for fire academy and makes you marketable for any other jobs which may pay more or send you to fire school as I said above). Once I had my paramedic, I would then get all the experience I could with said employer and then start the fire academy. Then I would research and decide where to go and apply...there always has been and always will be TONS of departments hiring....FL is always growing and the old people never stop relocating. This is "heaven's waiting room" ya know...
**Keep in mind that going to the fire academy is one of the best way to gain a job and get your name out there. Do not make this mistake and think all the instructors work for the school. Most if not all are Fire Dept employees from surrounding areas and they do and are vetting you the entire time without you knowing it. It is a great way to screen applicants before they ever even apply!!