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One path to find peace is to kill the part of yourself that cringes rather than try to smother out others who are "cringe". Otherwise, there are plenty of cookie-cutter medium.com blogs and LinkedIn posts if you want something more to your standards.
Cringing is a manifestation of shame. Shame can serve very useful social functions, even though it may not always be accurate.
We should not completely deaden our feelings of shame any more than we should completely deaden our feelings of anger, or joy.