I don't know why your comment made me write this. My parents died and my grandparents took me in when I was young I know I was a bit naughty a kid but they always tried to be very strict with me. Never allowed me to play outside, always said to my face I killed my mother, my mother never left any money etc etc etc. I tired to fit into the family but was always left out. This all changed when my aunt had her daughter. My grandparents thought my mother was reborn and treated her as their own and poured all their love on to her. Even small things like buying chocolate for her but not for me, buying clothes for her but not for me etc etc. I left my house and leaving alone now I am all grown up. But I am still treated as an outsider in the family never as one of theirs.
So I never understood where I went wrong. What was my problem? Sorry to ramble here my pity story. Just I need some answer.
First of all, I'm really sorry you had endure so much as a child. U really wanna give you a hug right now. 2nd, death is a natural occurrence. Every one of us is within the reach of death so your parents death if it's natural then it's NEVER your fault. 3rd, your grandparents and the entire family sounds really superstitious. No offense but I come from a religion were believing in any kind of superstition is forbidden so them believing you're cause of death and new born baby is your mother is utter bull cπap to me and Finally, I'm sure if you're parents were alive they'd love you like no other and they'd be very very disappointed and angry with how your grandparents treated you. I'd feel like that if my parents treated my own child like that. I'm really really happy you moved out of their house. Going forward best wishes for you. May you find your own beautiful happy family in the future and be a wonderful parent to your kids ameen.

I'll never understand parents who discriminate their children. Like, did the golden children cause less pain in labor during birth or did the neglected one take 12 months to come outta belly for you to treat them like trash? THEY'RE ALL YOUR FCKING CHILDREN FOR GOD'S SAKE!