I am so sorry that you have all had abusive mothers. For some reason, it feels more painful when it is the mother who is the abuser.
Tabris_075, I just wanted to say something to you. It is unacceptable, unforgivable unkind, cruel and dishonest for your mother to make you feel like you "are a useless piece of shit who should simply die". You have clearly been abused by the person who was supposed to love you, nurture you, keep you safe and give you the self confidence to go out and explore the world knowing that there is a place of physical and psychological safety (mum/family) to come back to - clearly this has been denied to you and unsurprisingly, you have taken on the persona that your mother has reflected on you. That is not your fault in any way. Just because she hated you, it doesn't mean that you should hate yourself - unfortunately we end up carrying the scars created on us by our caregivers and others around us and it is a difficult struggle to rewrite our DNA on how we feel about ourselves, our place in this world etc. But we hopefully can with the right support (which feels impossible to get or to work out).
I just want you to know that I care and so do the others who have replied to you. There are many of us with this shared pain and betrayal and none of us deserved this. We don't hate you whoever you are - you are a stranger to me and I to you. But there is a mutual comradeship built through the suffering. Please try and remember that you deserve to be loved. Please excuse my ramble.