There are at least 21 reasons to forgive. The list below is neither exhaustive nor exclusive.

Abandon resentment regardless of merit and repentance.

Forgiveness is a unilateral and unconditional decision. Reconciliation is a mutual and conditional decision (Amos 3:3).

Forgiveness frees from the offender. Healing frees from offense. Restoration frees from the consequences of the offense.

The revelation of GOD's love and truth, faith combined with prayer, communion with the HOLY SPIRIT, and commitment.

The devil will always try to exploit everything he can to get us to distance ourselves from GOD and think like him.

It is possible to overcome it. What you see, hear, and go through doesn't cancel out what GOD says or what he can do.

Forgiveness is a decision. Healing and restoration are processes. Free from the offender, the offense and the consequences.

GOD heals, but he doesn't impose. The essentials, the process, and the analogies.

In fact, self-pity makes you dig your own grave. If you feel sorry for yourself, it's because you trust in yourself and not in GOD.