which are all the personal requirements to go to Everest?

Hello, i am from Venezuela but now i live in Spain. I love mountains and one of my goals in life is to climb up to the highest one, Mount Everest. I know i need condition (which i am working on it) and some money (how much exactly?) but i also wanted to know every detail requirement i need to climb it. And do i need to form a group of people or can i join one?? which are all the steps i need to follow to achieve my dream?? thanks!!