You sound like you are living my life. My wife lost all interest in physical intimacy about 2 weeks after we got married. That was nearly a year ago.
I have tried everything to allow my wife's sex drive to start up. Therapy, physical, doctors, hormone therapy, sex therapy, blah, blah, blah.
She makes it a point to tell me that before we got married that she had plenty of sex but now she just has no drive. What are you gonna do?? I've left the subject alone and forced myself not to think about it for months. We have been in therapy since we got married about this. Nothing seems to matter.
She doen't even see this as a problem. She says sex just is not important to her anymore. She says that the only reason she will work on this is for me...because it is important to me. At the same time she is saying she will work on it...she does nothing. If I bring it up she gets upset and defensive. No matter how kindly and non-confrontationally I broach the subject it always ends the same. I'll try for you but nothing ever changes.
It has been a year now and we are no closer to a healthy sex life than we have ever been. If your wife is like mine she probably has a great sex drive when she is intoxicated.
Just remember one thing....
You could be the best looking, most secure, most confident, smartest, funniest guy in the world but it doesn't mean a damn thing to your wife's lack of interest if SHE is not willing to do the work to change it. It probably has nothing to do with you. If it does, then she should have communicated it to you long before it got to this point. That is not your fault.