Seng, What are you expecting? ARe you listen with a purpose of learning what the teacher is saying easily? Getting into the Accelerated Learning State is easiest with a process like the 3-2-1 purpose and affirm, open eyes. Personal Genius isn't going to have the angels singing that you're able to do that easily. My guess is that purpose has been achieved.
Memory Supercharger same again are you specifically asking yourself to remember x y or z from class? Then are you reviewing and testing it or just expecting something to bump you on the head and say you got it?
The point is how do you know nothing happened?
Paraliminals open up your access to your natural abilities. You can close it down again with strong negative self talk. Instead of looking at what hasn't worked look for the signs for what has. For example you might be remembering to get to the classes on time. Where in the pass you forgot assignments you are remembering them sooner. They aren't burning flashes of light indicators but they are signs you're getting ahead and that's what you want to build on.
AlexK