Could you share a whitening routine to revive a dull face in winter?

Right now, my favorite idol's comeback showcase video and music video popped up at exactly 11 p.m., so I'm watching them on repeat! I was amazed at how clear and beautiful her skin was, and then I looked in the mirror and saw how haggard I looked... I forgot my bus card this morning, so I had a hard time running to and from the bus stop, and then the winter wind and the heater blasted my face, and it's just atrocious. I'm so curious about how you all formulate your whitening routines to brighten your complexion while preventing dryness in the winter! I usually just apply a vitamin serum, but I'm hoping for something more effective. If you have any of your own whitening routines that will help improve your complexion before year-end gatherings, please let me know. A gentle whitening routine that's safe for sensitive skin would be even better, but I desperately need your advice! I'll be waiting for your recommendations on ampoules and face masks!