How have you improved yourself, and how are you doing in your life? Because from what I've seen, you are severely lacking in empathy, have issues reasoning, display emotional immaturity, and poor communication skills. But, please tell me, how are you doing in your life, and why should someone take advice from you as to how to improve themselves?
So sorry about what you went through, and kudos on the courage it took to bring these things up. It sounds to me like they behaved really horribly in the past, which is nearly impossible for a person's conscience to overcome.