Distinguish between forgiving and forgetting.
Forgive it for peace of mind. Forgive, even when the concerned does not apologize, we have sincerely forgiven. Done. Peace of our hearts.
But forgetting, that's a very different matter. Remember what others have said and done to us.nothing, not out of revenge, not out of hatred, but so we're not stupid! Falling back and forth in the same problem.
hopefully useful for my motivation this
by @yusmin