Should be a reason to celebrate, because new learning occurred.
Should occur at least occasionally, or you probably aren’t growing.
Should be cathartic not embarrassing.
There’s nothing wrong with having strong opinions. There’s nothing wrong with speaking with conviction. But when faced with new, better information it’s ok to change your mind; update your ideas; adjust your perspective.
Let your flexibility, not your stubbornness define your stance. It’s not only ok to admit that you’ve changed your mind… that’s part of being a thinker, a learner, a member of a pluralistic society, a decent human being.