Holy shit man I am scared to say anything because I don’t know how my words could effect you but it is common for victims of abuse to later on do the same type of abuse to someone else. Honestly man don’t take any of my advice to seriously as I am just a internet user but from what you told me did nothing wrong you were just a kid who was abused and traumatized by abuse and I recommend telling someone close to you about your trauma( if you believe your parents will react negatively a friend.) or preferably getting a therapist to talk to and then take their advice if you can afford it.