Fantasy Vs Reality

Hi Just wondering when does Fantasy turn into Reality and how does one cross the line into reality .. I find this pretty tough Being a pretty staunch character and dominant in all aspects of My Life I have found that im feeling more and more Submissive in the bedroom but of course I have never expressed that to any of the females I have slept with but its becoming a real distraction while love making. Soi I would like to hear peoples thoughts and advice on the subject appreciate all replies thank you regards Buck