Boundaries that Every Codependent Teen and Adult Female Should Set

I’ve finally had my breaking point and realized the toxic nature of my narcissistic relationship. I begin counseling only to learn that I have no idea who I am or what I want out of life. I have given every ounce of my personhood to my partner or friend and sacrificed my authentic self-identity in the process. How do I heal the brokenness left behind from a destructive relationship and rebuild my values and self-esteem?