Many people were abused by a sibling. Yes, i was one of them. And yes, it messes up your head really horribly. It gives you trust issues, anger issues, low self esteem issues, identity issues and all out feeling horrible about yourself. I suffered nightmares, insomnia, anger, rage, hate. To this day I feel just numb inside, not wanting to even go there anymore. You learn to let the past go and move forward. With work you can manage this, into a new chapter in your life. tc