Mothers are always the superhero in every family. I can only imagine how your mom struggled to take care of the family, bringing up three kids all by herself was not easy on her. Everything she did, she did for the love of her children who are her family. Your sister must be a photo copy of your mom because she worked so hard to take care of her father and herself, that is pure love. Despite the bad actions of your father, you still enjoyed the care, support and love from within. I wish you all the best!