Hello I have a younger sister , whom over the years has been a very nasty person towards myself and my other sisters and even my parents who have sadly passed away now. She is very manipulative and users every situation to gain control of everyone around her. Over the years we have allowed her to get away with everything as she always threatened suicide. Earlier this year she was diagnosed with cancer, we were all there for her but she is still so horrible to us , she fills me with dread and my chest is so heavy with the vile things she says to me. I feel like I can’t cope anymore and have taken a step back from her to try and get my head around everything that’s happening . This now has fallen on my other sisters and they are now being treated awful by sister instead of me . It’s causing so much friction in the family but I feel I can’t put myself in her line of fire anymore . If it was just the cancer I would be fine and I know it would blow over hopefully eventually. She now uses her cancer to control everyone around her instead of suicide , I feel she is using it as a weapon against her family . I don’t know what to do to help my sisters that I have left trying to support my younger sister. I have spent many nights laying awake thinking and crying about the things she has said to me , I don’t feel like I can get past it and be there with my sisters , to support this awful person .