Alright, I am supposed to RC a lot to see if I"m dreaming. Recently, I have been doing that quite often, but when I RC in the real world, I get a different outcome. Usually, I will try to hold my nose in a dream and attempt to breathe. It can still breathe. For some reason, this check does not make me lucid. Why is this?

I do it but do not realize I am dreaming. I simply do it. What in the world?