So long as we do not die to ourselves, and so long as we are identified with someone or something, we shall never be free. The spiritual way is not for those wrapped up in exterior life.
What keeps us from forgiving the people who hurt us is that we have not yet healed the wounds they inflicted. Forgiveness is the gift at the end of the healing process. We find it waiting for us when we reach a point where we stop expecting "them" to pay for what they did or make it up to us in some way. Yet, forgiveness is moving on. It is recognizing that we have better things to do with our life and then doing them.