“I changed my mind” isn’t weakness. Sticking with a bad call just to look consistent is.

Changing your mind gets confused with being unreliable, and the two are opposites. Updating because you learned something is the system working, while holding a position you no longer believe so your record stays tidy means everybody around you is now dealing with a decision nobody supports. Consistency is a strange thing to be loyal to.

Say the plain sentence when it happens, with no apologetic preamble. Name what changed your mind, since that makes it a reason rather than a mood. And watch for the thing you are only still doing because you announced it.