He is basically saying that he is done fighting and there is no Mayhem anymore. The whole Mayhem thing and that persona has died and now he will just concentrate on this movie career. He will fail on it miserably probably but at least that is what I get out of it. Oh and he thinks he is scared to be Jason Miller, which is why he hides behind these stupid personas. Because Jason Miller is in deep fucking trouble and has a dead career i guess.