Can someone please give me some advice?

My first order of business would be to actually delve into what it means to "survive" and the techniques associated with survival, either shelter, agriculture, hunting, self defense, etc.

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Definitely keep looking for work or a way to make extra money as that can obviously be put towards better preparations. I like the idea that others mentioned about doing work for seniors who need a bit of help.

About your "survival" preparations and the view that your family/friends who live with you take on that, you should try to get them on your side. It's probably best not to worry them about things getting so bad, etc. I would even recommend not even referring to it as "survival" but instead talk about "self sufficiency."

The term "survival" might push them away if you talk about it in terms of the very bad times that we are probably heading into. When you instead talk about "self sufficiency" that might actually help to draw them in. You could talk about how nice it would be if you all could save a bit of money this year by growing some fresh food in your garden. That it would make the seniors in your household a little less reliant on social security, etc. You might even mention once in a while, when you all see it talked about on TV, that even if the economy gets much worse at least your family has a garden with virtually free food and some extra tucked away.

So go with "self sufficiency" and be gentle about it, I think it will help draw your family in to the concepts. The additional help from them will also be nice and I bet the seniors will probably appreciate doing a bit of vegetable garden work. They could help with getting your seedlings ready, maybe have a few houseplants that they can take care of and maybe they could help with saving food scraps for composting.

I bet they would really like having an area to sit which is near or in view of the garden. Plant a few colorful flowers and maybe some of those giant sunflowers as it all would be nice to look at. If you have hummingbirds nearby, maybe get a feeder or two or plant something that will attract them.

And when you're garden is really rocking, don't mention that you're all now ready for TEOTWAWKI but rather just ask if everyone thinks the veggies from the garden that you all have been working on taste better than the ones from the store.

Is a very good idea,A couple of times I was down and out and pretty hungry.But I did have a good running vehicle,so I rounded up several ice chests and started taking shopping lists from seniors and doing their shopping for them.The tips were very good because it is such a pain for them to go shopping by bus or taxi.Both times it turned into something so large that I was about to hire some help to cover it all.I was taking shopping lists by phone and the word spread fast.
And it only took the cost of a couple of tankfuls to get started.

is to get started. Each survival prep you obtain, whether equipment, materials, or training, will give you more confidence and peace of mind.

Relocation need not be a major expense. I couldn't afford to buy land in the US so I've gotten started with a $5,500 land purchase in Ecuador. That's for 10 hectares (almost 25 acres) of rain forest.

Look around. You are living with 2 senior citizens who need your help. How many others are in your area. Any senior centers around. Go into business helping senior citizens.

Less that 4 weeks ago, I checked the bulletin board at the supermarket and contracted for snow removal by someone who had recently lost his job. In talking with him he told me how he has been getting a lot of business from senior citizens. Told me of a man paying a hefty service charge to have an electrican change a ceiling light bulb. Told me about a woman who called to have a picture hung. He charged her $30. She told him that the last guy to hand a picture for her charged $100. Of course, he thought that was outrageous BUT it does show how much seniors are in need of help in doing things that they can no longer do.

That's my 2 cents.
Good luck

1) food
2) water
3) meds

Start out with a basic food supply like cans of tuna, etc.. Then maybe get a water filter. I suggest a "big berkey" water filters. Then stock up on over-the-counter meds and try to build up a supply of prescription meds for loved-ones who need them if possible.

As far as gardening, look to sunken container gardening instead of "row" gardening, start a compost pile, save your egg shells, peanut shells (tomatoes LOVE egg shells for the calcium).

Save any kinds of seeds, dry them, and then crunch them up for fertilizer. Save dried orange peels to mix in with the dirt to keep ants away. Order some quality heirloom seeds.

south Florida will be a terrible place to be if the stuff hits the fan. I would look for employment in Montana, Idaho, Utah.... A small town would be good.
This is not a very easy task.. You also do not have much time.

First I would say, don't limit yourself. Keep looking for work that will provide you a stream of income while you pursue your gardening and survival goals.

Not sure your current financial situation, but...

With regards to gardening, can you turn it into income? My guess is this isn't your property, so will that be an issue or is it families? (you don't have to answer me, I'm just pointing out pitfalls that may come)...

Maybe once you get some income coming in, you can buy a few acres of land and grow things. Florida real estate may have further to fall and your timing might be perfect by the time you're income returns. Start scouting now.

We have farmland in Illinois that we cash rent out. It's there if we ever need it, and we get a nice income from it. I remember as a kid having the biggest garden around and we ate for free, except for the cow we'd have to butcher now and then.

Twas a long time ago...

Priority needs to be put on income though. Get your ducks in a row then work your plan.

Hope that helps some...