Answers: if your serious. try self hypnosis. or even easier try affermations.
your dreams are largely beyond your control. try masturbating previously bed. it should lower your hormone levels and such so that your body wouldnt be as predictable to go within. nocturnal emissions surrounded by theory are one mechanism a body uses to release. if you have already released that would lower the involve. also try filling your mind near something before bed, something completely non-sexual.