This is specifically mentioned in Buddhism as one of the ten hindrances, "sīlabbata-parāmāso," attachment to rules and rituals. In Christianity, this is similar

This is specifically mentioned in Buddhism as one of the ten hindrances, "sīlabbata-parāmāso," attachment to rules and rituals. In Christianity, this is similar to the idea of works-righteousness which was the basis of Martin Luther's Protestant Reformation. In either case, spiritual practice would be meaningless without passing through the messiness of life and learning from mistakes rather than dwelling on them.