The thing is that the more times you listen to the audio, the better. The second session takes away your nervousness but you will find out that because you don't care so much anymore, your nervousness levels are lower.
I could see the results the day after because I was 100 times more carefree than before. The first audio session is about carefreeness and I listened to it a couple of times then I went to sleep. If you only do the first module, you are 10 times better than you were before. It is some type of semi-hypnosis that affects your subconsciousness and really changes your old way of thinking and reacting. The audio sessions are where the real magic happens. The modules are about an hour long and they give you a lot of informations, but most importantly warm you up for the audio sessions. In the beggining of the course Ben says that this is not a magic pill, well for me it was.