When we are wounded as a young child, then that can set up believers for adulthood. What happens in an individual's heart when wronged and not responding with forgiveness? What are the results of bitterness or resentment?
Do you have a reproach against someone? Do you know that it will keep your spiritual life from growing with God?
Every human in the world has been hurt or let down in one way or anther. God understands! He saw Jesus nailed to the cross for our healing. What does it look like when we forgive completely? The best picture of this is God, himself in the person of The Father, Son and Holy Spirit. Jesus said, "Father forgive them..." while on the Cross, and the Father "blesses His Children..." and the Holy Spirit "Lives inside us..." That is beyond just "forgiving."