When I try autosuggestion, I keep telling myself "I will know when I'm dreaming, I will know when I'm dreaming" and I can keep my mind saying that, however I have a very busy active mind, that will think other things over that, and other things over that too, so I am still telling myself I will know when I'm dreaming, but I'll also be thinking about up to 2 other things. How can I have my mind focus on just repeating that over and over? Is it as simple as just gaining mental discipline? Is it normal to be able to think 3 thoughts at once?