Fluorite
Fluorite is a very protective stone against negative energy, among other things, it also helps you to concentrate well. It can also help you overcome fears and give order to a perhaps chaotic life or way of thinking. He gives self-confidence and balance. It is said that the different colors of fluorite also have their own effects.
Yellow: Uplifting and setting boundaries for yourself.
Green: Clear thinking and rational thinking.
Blue: Memory and helps with doubt.
Purple: Peace and concentration.
Rainbow fluorite of course has all the colors so then you have everything in 1 stone.
I choose a stone for you on intuition, they are all slightly different but very beautiful!
(Do you prefer a certain color? Put that in the comments when you checkout and I will see if I can find one for you!)