One definition of the word “repent” is “regret” as of a past deed. To me that indicates being “stuck” while ruminating about the past which actually doesn’t improve anything.
Eventually something has to change in our thinking for us to progress. This means to release “self-pity” and “self-condemnation” and replace it with Love and forgiveness which is always the answer.
Hebrews 4:16 states, “Let us then approach the throne of grace with confidence, so that we may receive mercy and find grace to help us in our time of need.” This can only come after we learn to be gentler with ourselves.