I think a way to go forward is to consider counselling. I felt utterly worthless had no self-confidence and spent most of my childhood apologising to my mother because I was a "burden" as she put it. She told so many lies, my Grandparents were worried for my physical safety, and took me out of the house. I was brought up by them, while Mother doted on my younger sisters, who had an idyllic childhood with her. When my Grandparents died while I was a teenager, she told me that my Grandfather had sexually abused her when she was a child, and hoped that I'd had the same treatment from him, because I was "bad", this was a total lie, he never did anything like that at all, as an adult, I see a pathetic, sad woman, I do feel pity towards her, but have distanced myself. Counselling helped my no end to love myself and to feel I deserved happiness. I no longer seek her approval, I last spoke to her 4 months ago, when she told me I was, and always will be, a massive disappointment to her, as she does not think I measure up to my sisters in terms of achievement. I can't change her, but I don't let her poison me with her hatred. I wish you well.