About the personal color self-diagnosis method...

My skin feels dry and rough these days because it's winter, so I'm currently trying to select cosmetics that suit me. I'm curious to know what my personal color is and if there are any self-diagnosis methods I can do at home. To be honest, I didn't usually have any major skin concerns, but as I get older and winter has arrived, I'm starting to worry about them.

There are winter cool tones, warm tones, and many other different terms.

I became very interested after learning that personal color has a significant impact on cosmetics and clothing choices. Can anyone share a simple way to distinguish your personal color?