You are not a narcissist for a start. The best way to change yourself is reflecting on yourself and that is something you obviously do. And even if what you say is true, which I seriously doubt, if you are such a poor serious excuse for a human, that means everything you can do every other human can also, so you are the perfect role model for all mankind, do you think I want to hear that Kate Moss is able to keep her diet? No I want a looser like me showing me how to do it. If you can learn X (insert whatever you like) , someone else can too and so many people fear to do so many things, I have serious troubles doing anything handyman like in my household , so show the world that you can learn it (whatever "it" is) and tell the rest, if such a looser like you can do it, so can they and voilĂ you are a big comfort for them and play a important role by motivating people.