If you are planning to be Homeless then you have already given up. A geographical solution wont work towards living a better life unless you have the life skills & attitude to accomplish them. SNAP/EBT is a federal program & is available everywhere. Having the correct documents is more important than where you are. I travel with my SNAP card issued in Massachusetts & never had a problem using in other states. That being said had I not had all of my official documents I would never had gotten ebt, SSDI for my wife or any other assistance had I not had them.
I do know that Florida has some of the most anti homeless laws in the country. This seems like a new chapter in your life, maybe a midlife crisis? At 45 I would hope that you have some sort of survival skills in this world. You can use the internet & are posting here, so this is a start, but life is generally a DIY endeavor so the burden of basic research, trial & error etc falls on all of us individually. Since you are asking in advance then you still have hope. Being Homeless to me is having no will to live or ever trying to improve your lot. Homebums are the same everywhere, they all just gave up! Most mumble the same nonsense & shuffle around as if there is a humbum training program taught somewhere. Have you ever heard the term houseless not homeless?
I completely understand that you are ready to torch the white picket fence & get away from the cubicle but being Homeless aint the way. A home, regardless if its a house, cabin, apt, trailer, rv, microhome, shed, squat, tent or sleeping bag is a psychological possession. Do you have options? A drivers license? Car? How do you get around? Can you coexist with others in a communal environment? I would keep reading stuff & networking with others here on STP. I get it, you are done with being in the cyclic wage slave consumer vortex. That don't mean that there aint still work to be done. The reality is that you need to aquire some skills to survive & retain your will to survive in style & actually improve your life instead of becoming an angry homebum. Good luck man.