EVeryone has acts they knew intuitively were in some way more harmful than good. And everyone has a list of things they did not do that would have been better done, omissions which harmed through inaction.

Neither sort of harm requires a confessor--it requires the strength of personal ownership and responsibility, a willingness to face the truth. 'S about it. Sins are one's own responsibility, and not that of any intergalactic watchers.