What are the elusive constellations with good or bad personalities?

Personally, I think there are good and bad personalities in 12 constellation, and the following constellations are confusing, namely Gemini, Capricorn and Cancer.

The first constellation is Gemini, because Gemini people will give people a feeling of dual personality when dealing with people. Maybe one second they were still laughing, and the next he might turn his face. Turning his face is really faster than turning a book. In fact, Gemini people themselves don't know why their personality changes so suddenly. In daily life, they may be influenced by some small things. Seeing it, others didn't consider it or notice it, but it left an indelible impact on his mind. There are good and bad personalities, which is understandable. I think the second constellation should be Capricorn, because Capricorn people give people an inaccessible feeling in their daily life, which makes people afraid to get close. Capricorn has a delicate mind. So in daily life, he will capture some small details to judge a thing. Maybe these details may not be as he thought, so the mood changes because of these things. Often without your knowledge, he will become very cold, and it will be difficult to associate with Capricorn. The third constellation, I think it should be cancer, because cancer's thinking is different from ordinary people. He will always misunderstand what others mean, so he will become emotional. If he can't control his emotions well enough, he will appear. The situation of great joy and great sorrow often leads to the ups and downs of such people's personality, which makes others puzzled, especially this pessimistic constellation. When he thinks about the problem, he will think about all the bad things, and his mood will naturally not be high.