I think I am the biggest narcissist ever
Why do you think that you are a narcissist?
I only look at myself and I only care about the people I like, not those who like me
It is important to treat people better. You will annoy those close to you if you constantly disregard them.
I don't care, this is a game to me.
You should care before you end up all alone in your life. If you treat people around you well, they will treat you well.