My dad has had a minor heart attack?

Hey, ok, im richie and 18 years old and a couple of year ago my dad had a triple bypass because he had angina (minor heart attack) i live with him and my younger brother who is epileptic, my dad went through all that then a few months later my brother had to go for an operation to remove a brain tumour, when this was taking place my dad suffered another attack, i was at school doing my GCSE's and he was down london at Great Ormand Street hospital, we live in newcastle, thing is he had a minor heart attack the other day due to stress as we have all had a pretty rough time, im abit worried that he's on his way out because we have out own house, we have a few classic vehicles that the rest of my family are not happy about, they will want me to get rid of them and they have all been left for me and my brother, there might also be a risk that i will have to move down south and my brother will still be living up hear, we wont see each other for along time, things are pretty bad at the moment, i dont do much to help my dad like chores, its not that i dont want to, its because i have depression, he knows it but other family members thing im just guilt tripping of just in a sulk, could i have some help maybe, just to sort my head out abit?