Sorry for your nightmare. You suffer much worse than me. Because my medical insurance is still safe, so I count my blessings. It's outrageous you cannot get adequate health coverage at your age.
Other than my urology problem, my health is mostly under control, because of my strict Buddhist diet. No pizza, No ice cream, No pastry. But lots of vegetables.
I heard many on this forum mention that whenever they feel depressed, they turn to food to glut themselves. In my case, when I feel dismal, I turn to a cup of tea. Sipping mindfully on the tea enables me to control my emotions and dissipate them. In my Buddhism, sipping the tea in a meditative way is part of the spirituality. But maybe that practice is foreign to you, even alien to you, so you might feel hesitant at it. It's up to you what you want to do. All I'm saying is what works for me.