Three-way mirrors show you angles of yourself you never see. Nobody else is inspecting them that closely.

A changing-room mirror gives you a view of yourself that nobody in your life will ever have, at a distance and a duration nobody would be comfortable using in public. Then you take the distortion personally. The people you see today get a glance from the front while thinking about their own day. You are the only one running the full inspection.

Set a limit on mirror time this week, especially under harsh light and especially before you go out. Check that things fit, then leave. If you are hunting for faults from angles nobody occupies, that is the moment to walk away and get on with the evening.