The only advice I have is to Accept the fact that justice is an elusive concept that most people never experience. When I feel bad over what he got away with, I turn my focus to people who were screwed over much worse. Trust me, there is no shortage of “others”. In the grand scheme of things, I don’t have it bad. I also do my best to help right any wrongs that I can. I try to help people. When my efforts do help, that makes me feel better. And although I wish what happened to me never happened, I have been able to channel it into some good. It actually had the effect of making me a better person. Find role models to assist you. For me it is my grandfather. His parents immigrated here (US) before he was born. Within 5 years, his mother died from illness, he was a baby. 1 yr after that, his father was murdered, and the murderer got away with it. So by 2 yrs old he was orphaned and sent to an orphanage. He was abused at the orphanage and would run away. Sent to foster care that was more akin to indentured servitude. He ran away a final time and was on his own at age 15. He only completed School up to the 6th grade. Now, here was a man who had every reason to be angry. Instead he was a kind and honorable man, happy too, who valued his family more than anyone else I’ve ever known. So when I start feeling angry, I think of him and what he’d tell me if he were still alive.