Has anyone been a child victim of parental alienation, now an adult looking for answers?

I have just been diagnosed with Post Traumatic Stress Disorder after finally coming to realizing that my mother was an alienator in my relationship with my Dad. I am in so much confusion and I feel like my whole life is a lie. I am wondering if anyone else has ever gone through this and if there is hope of being reprogrammed, because I want a relationship with my dad so much, but how can I when this doesn't even feel real? I am living in a constant state of nightmare right now. And I am only 22!