In my dreams, I tend to think something like "alright, now I'm going to try to move through that wall", and then I can't do it. My problem is that I think "what if it doesn't work?" and the "don't be stupid, of course it'll work. It's YOUR dream, genius." logic doesn't work because I'm still in dream logic (this is one of the reasons I contend it's not a lucid dream, my mind still feels very "foggy" in these dreams), and because it "feels" real.

How do I get around this?