How do i get along with someone who is VERY judgmental and has..?

when people act like that to me, i usually just stay quiet. i sit and listen, say okay, and nod. it kills me to because im the type of person who will snap back at people, but the way i see it, why waste your breath? let them think theyre right, whatever floats their boat. just agree, it can be hard, but you know youre right and its not worth spending all that time arguing.