Gosh, I’m so sorry this is happening to you. Yes you should do what the others have said about getting someone trustworthy in charge of your legal affairs while you’re still able to sign them over.

Yeah, might be a good idea to get on the Don’t Sell list. Otherwise a person in your situation might give in to the urge to commit Dumpicide and either use their diagnosis as a defense or be shot by the Secret Service and spared the long decline.