Repentance

Elder Neal A. Maxwell wrote “After recognition, real remorse floods the soul. This is a “godly sorrow,” not merely the “sorrow of the world” nor the “sorrowing of the damned,” when we can no longer “take happiness in sin.” (2 Cor. 7:10; Morm. 2:13.) False remorse instead is like “fondling our failings.” In ritual regret, we mourn our mistakes but without mending them.

“There can be no real repentance without personal suffering and the passage of sufficient time for the needed cleansing and turning. This is much more than merely waiting until feelings of remorse subside. Misery, like adversity, can have its special uses. No wonder chastening is often needed until the turning is really under way!” (See D&C 1:27; Hel. 12:3.)

“Repentance” October 1991 General Conference.

Please see Pres Oaks article Sin and Suffering: https://www.churchofjesuschrist.org/study/ensign/1992/07/sin-and-suffering?lang=eng especially the sectin"Personal Suffering for Sin"

Elder Uchtdorf

“Godly sorrow leads to conversion (Acts 3:19) and a change of heart (Ezekiel 36:26; 2 Corinthians 5:17; Mosiah 3:19). It causes us to hate sin and love goodness (Mosiah 5:2). It encourages us to stand up and walk in the light of Christ’s love. True repentance is about transformation, not torture or torment. Yes, heartfelt regret and true remorse for disobedience are often painful and very important steps in the sacred process of repentance. But when guilt leads to self-loathing or prevents us from rising up again, it is impeding rather than promoting our repentance.”

https://www.churchofjesuschrist.org/study/general-conference/2013/10/you-can-do-it-now?lang=eng