Gemini or Pisces, which constellation is more duality and unpredictability?

I'm not sure, because I read the life experience of Pisces or Gemini. It can be said that Pisces is crazy, the most dual personality, pay attention to it is crazy. Normally, I won't go crazy, but if I go crazy, it's a once-in-a-lifetime madness in Pisces, but it's rare. Gemini has always had a dual personality, but not as crazy as Pisces! ! !