Perhaps it's possible to forgive in one grand swoop, but I didn't experience it that way. I did it in bits and pieces. You forgive what you can, when you can. To forgive does not mean overlooking the offense and pretending it never happened. Forgiveness means releasing our rage and our need to retaliate, no longer dwelling on the offense, the offender, and the suffering, and rising to a higher love. It is an act of letting go so that we can go on.
Without doing anything, things can sometimes go more smoothly just because of our peaceful presence. In a small boat when a storm comes, if one person remains solid and calm, others will not panic and the boat is more likely to stay afloat.