13 He who conceals his sins does not prosper, but whoever confesses and renounces them finds mercy.
Acts 3: 19
19 Repent, then, and turn to God, so that your sins may be wiped out, that times of refreshing may come from the Lord...
1 John 1:9
9 If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all righteousness.
Repentance begins with remorse (Godly Sorrow/feeling sorry) for the sins we have committed as we confess our sins to God.
Repentance also involves a change in direction-a turning to God in heart, mind and action as we turn from living life however we please to living to please God.