I'm sorry but what you're writing is not self hypnosis. It is, as you said, Ericksonian hypnosis used to influence OTHERS. Sure you can record an induction and listen to it, but in my opinion it is a little bit hard for beginners. Pure self hypnosis bypasses the critical factor, though NOT by using the Milton Model, but with relaxation. You can Pm me if you want to discuss with me, I am eager to talk to someone who knows hypnosis too