When starting to be a forgiver (someone who forgives consistently), try to begin with hurts that are not so large. It is not unlike starting an exercise program. If you try to run 5 miles the first day or to bench press too much weight too soon, you get quite sore, quite discouraged, and may stop exercising. If you start slowly, you build up strength so that you can handle the longer run or the challenging bench press. Start forgiving someone who has not gravely hurt you and work up to those who have.