Get yourself a Medicare Advantage plan. Here's a link showing some plans in Florida":
https://health.usnews.com/medicare/f...medicare-plans
If you drop your Medicare Part D coverage, which is an option for you, you will hurt yourself financially down the road. That's why I say you can't afford to do that now, especially if you are struggling, due to a limited income. Here's a link and an excerpt:
https://www.aarp.org/health/medicare...estion_70.html
"Even a person with the healthiest lifestyle suddenly can be struck by an unforeseen disease or an accidental injury that requires expensive drugs to treat. Some drugs, especially for cancer, can cost thousands of dollars a month. You are not allowed to enroll or re-enroll in Part D, outside the annual open enrollment period, just because you suddenly develop an urgent medical need for prescription drugs and cannot afford to pay the full price out of pocket."
I urge you to read the article at this last link very closely, so you understand the longterm penalty you might bring on yourself, if you drop Part D. At least know the consequences.
I apologize for sounding like I'm uncaring of the difficulty you face in trying to do the best you can in a very tough situation. It's true that I don't know the particulars of your specific situation. What I do know is that the system has been purposely set up so that just about no one can blow off Medicare Part D, without regretting doing that down the road. I, myself, do not have to pay any Part D premium, which indicates that my income is even lower than yours. So I, too, struggle with trying to keep a roof over my head. Before I got SSDI, I was suicidal from fear of homelessness.
I also don't know much about Florida. I suspect that it may not be the easiest place to try to get by on a very limited income. Politics can have something to do with that. I live in a blue state where public policy about helping low income persons access healthcare is much better than it is in red states. Also cost of living is lower here than in most places. (Your air conditioning bill alone must be quite a burden.)
Since you've been on and off and on SSDI, you must be making a valiant effort to remain employed, despite a major health issue. Many who could don't bother. I commend you for that. You probably could have just thrown in the towel. (I did.)
I'm sorry you got laid off, after moving to take the job. How disheartening! You are considering a kind of complicated set of options, due to your wanting to work and earn what you can. It's less complicated for me because I'm not going to even try to work. I do qualify for just about every benefit out there, from Section 8 housing subsidy to a subsdized telephone line.
You should do whatever, in your own judgement, makes the most sense to you. It's not for me to say. I'm sorry for coming off that way. Let your judgement be informed by knowledge of and consideration of consequences, both short and long term. It's obvious that you're intelligent. Sometimes, when we compare our options, we find there isn't an option that doesn't have a serious downside. That is dismaying. It's tough to go through that when you are sincerely trying to do your best, as I believe you are.