Sorry but you’re sister is an asshole and the way she said “i don’t want negative energy around my children”made me so angry how come someone be so considerate with their kids and a total asshole with other people. You may not consider relocating now you’re still young and it’s tough out there. You can just dissociate and ignore them and seek support elsewhere the internet is full of people who have similar problems and i am one of them Stay strong and simply ignore her