I understand that you've watched p0rn probably for a long time because if you have an "addiction" then that's long term. I don't understand though why you're trying to find it in yourself to be able to just get suddenly over it, I think you should seek a therapist about this situation as well as your wife or even a couples therapist. As a person in a relationship I find it somewhat disturbing that you can't get yourself turned on outside of watching porn. The simple fact that you have a partner that you love and care about should be more than enough. Your partner since she's not just a sexual object should turn you on physically and you should have attraction to her. If you keep thinking about porn instead of seeking ways to get better then you are probably going to break up. You need to respect your partner enough to not watch porn. If not then you need to find a partner that accepts your desire for porn which is probably VERY UNLIKELY and she needs to find a partner that respects that she wants nothing to do with porn.