This is only my opinion. I am not a doctor, counselor or medical professional. I believe narcissistic personality disorder, and in fact most if not all personality disorders are more about maladjustment to the environment rather than some genetic condition. I did not see how old you are. What you can do is plan for the day you make your own home--no matter how humble, and sooner is better than later. It doesn't mean glomming onto the first sex partner and 'trying to make it work' -- it means doing as well as you can in your education and training for a career that will allow you to be self-supporting.