Forgiving my Father

About a year ago I was hurt beyond belief by who is now known only to me as "sperm donor". I will spare you the details as most of you reading this already know anyway. Through the support of my family and friends I have come to realize that I need to let go of this grudge for my own sanity. He will never know of my decision, this is strictly for ME! God knows my heart and to preserve my relationship with him, I must forgive my father.