Forgiveness can be difficult when we only focus on how we've been wronged and hold on to that feeling. But I can easily forgive in spite of myself, when I remind myself just how often I blow it and hurt someone else. When we hurt someone else we are not just hurting ourselves, but we are hurting God. However when we blow it and we come to God about it, there's no doubt that we are instantly forgiven. So if the great Creator of the universe can wipe out all my transgressions, who am I to hold anything against anyone else?
When I come to terms with that (time and time again) I can forgive and thus release myself and release the other person/s from the bondages of unforgiveness.