Perhaps your exhaustive reflection on regret comes from a motivation that you don't want to redo something you paid dearly for. Admirable. As if you are paying penance in your reflection wheel, keeping regrets top of mind to ensure no relapses.

Regret is apart of actively engaging in life, like an occupational hazard. If you are only to sit on the sidelines, for sure, fewer regrets may occur. But might that be a regret in and of itself–to stay on the bench and not engage?

Isolation. Regret drags along isolation. Isolation traps your thoughts in narrow and unforgiving tunnels. Then, at epic speeds and alone, regret becomes about your own worthiness as a human. Journal Prompts: The isolation of regret steals... Regret Series Journal Prompts Anger Identity New Beginnings

Processing regret is about having empathy for the vantage point of the past self.