You have to make the conscious decision to choose happiness and be grateful for where you are. You'll never move on from your ex if you stay emotionally connected by blaming him or her, blaming yourself, and staying embroiled in regret. Don't focus on being right, because no one is 100% right all of the time. Stop thinking of yourself as a victim, because that sense of identity will weigh you down. Instead, accept that you've survived what happened and are empowered because of it. Of course waves of pain and anger will sometimes wash over you, and it's ok to process those feelings. But don't dwell on those feelings too long or you'll be pulled down into a whirlpool of depression. Make a consistent effort to stay positive for yourself and move forward.