Sometimes push comes to shove and choices have to be made, about 12 years ago I got into a new car and the shyt hit the fan and I could not afford it. I skipped as many payments as could and saved every penny I could, about 4 months later I returned the car. I had enough for a old beat up car, No working AC and I lived in Florida at the time AND it had black vinyl sets,, Gahhh !! but it was all mine.
The repo car screwed my credit big time, But I had no choice. I went with out TV for over 5 years. I had the cheapest cell phone... think back when you paid for minutes, I got a phone with maybe 100 mins a month for like 28.00 a month. I didnt eat out for months at a time. My Daughters needs came before mine. She ate well, I got really use to rice and beans. Basically I cut out everything that I could.. Washer broke I did laundry in the bathtub for months and months.. Total suckage!!!
But I managed.
I think your T is right that you need to stop the anger about a situation you have no control over , accept that they are still helping you, Maybe make peace with your brother, he is most likely going to die before you. You might regret not being on decent terms when his end comes.
Your parents just aren't loveable supportive hugging types. Lots of people suck at being a parent.. I see this stuff all over PC in most every forum, very sad. I have my own baggage from my Mother.
Im not being mean. But personally I think if you focus on reducing your stress its going to help improve your health issues. Stress is huge and is horrible for the mind body and soul.
I hope your able to find some peace with this situation.