My experience with forgiveness is that it sort of comes spontaneously at a certain point and to try to force it it's not really forgiveness. It's Buddhist philosophy or something spiritual jargon that you're trying to live up to but you're just using it against yourself as a reason why you're not okay.
Pema ChodronIn tonglen practice, when we see or feel suffering, we โฏbreathe in with the notion of completely feeling it, accepting it, and owning it. Then we breathe out, radiating compassion, lovingkindness, freshness - anything that encourages relaxation and openness.โฏ So you're training in softening, rather than tightening, your heart. In this practice, it's not uncommon to find yourself blocked, because you come face to face with your own fear, resistance, or whatever your personal "stuckness" happens to be at that moment.
Pema Chodron