Setting Priorities

I am incredibly confused a to what the Underground Man has set his main importance on. He, on one hand seems to be obsessed with tackling about how "rational" he is. On the other hand, I am angered by how he keeps confusing me by talking about his consciousness. I don't understand what he is trying to point out to us. I honestly think that the underground man needs to get his priorities straight and stop frustrating everybody who tries to understand him.