How do Medicare Tax Credits and Deductions Work?

I am 50, and as of last year we cannot get a tax credit on the marketplace if we have Medicare Part A. Part B is way too expensive. I canceled it about 20 years ago. I recently, without knowing it would be over $385 dollars a month, submitted the document to start it back up. I thought it would be less than $180 a month as before. It was clearly NOT. I canceled it right away when I saw the first deduction. i was VERY UPSET! This is all because of Obamacare..SOCIALISM! This is NOT right, and Obamacare needs to be fought until it is finally voted OUT PERMANENTLY! I am not going to pay $400 per month for commercial health care insurance either. I am very healthy, and only need to see a doctor maybe twice a year. But when I need it for a certain health issue, like digestive, and need tests, I am screwed, because I cannot afford health insurance!!! And I make too much to get Medicaid! I get survivors benefits under my deceased veteran father, and my diagnosis is bipolar. Even to get medicaid buy in for those who work part time with disabilities, they want me to go through the entire re-evaluation process all over again! I have not seen a psychologist in many years, or taken meds, because all of that either stressed me out worse, or made me very sick!!! i will always have bipolar, so why are they wanting me to go through all that just to get medicaid buy in program, when I receive survivors benefits because of my diagnosis?!?! It is the most ridiculous nonsense, and it is CRIMINAL!!! These radical democrats want to give free this and that, including healthcare to illegals (And they do in Colorado!!!), but citizens are screwed out of any affordable or reasonable health insurance, even if you have a known mental illness, regardless of if you have to see a psychologist/counselor and take meds or not! It makes me so angry!!!!!!!!!!!