Notposhut,
Welcome!
I relate to your story word for word. Except I carried on in my addiction for 17 years of marriage before I discovered this wonderful site, and discovered I wasn't just a baal taiva, but an addict. That meant self control wasn't going to work. Which is why you keep falling back into it.
Filters and accountability are important, but as you discovered, they're not nearly enough. Because they don't address YOU and your addiction. And they can always be circumvented.
Nothing in your power has worked so far. At least not for long. Not for keeps.
So now you have accepted that you are powerless over lust. Congratulations! You've just gotten to the first of the 12 steps to recovery.
Being powerless over lust means you're going to avoid it at all costs. Because that's all you can do. And because you know your life has become unmanageable. Insanity.
Take a look at the 12 steps here:
www.guardyoureyes.com/articles/12-step/item/summary-of-the-12-steps learn about them, about how to apply them. If you try this on your own and fail, you may want to join a live group that "works" the steps.
Here's what worked for me:
1. Bulletproof shmiras eynayim. No women. Not their faces, not their polished nails, not live, not in pictures. Turn your head away. Turn your body away if necessary. Pinch your inner thigh hard if you catch yourself looking.
This goes for your wife as well. You can look at her face, but don't check her out in a way that's going to get you thinking....
2. Guard your mind from fantasies, memories of images, thoughts about sex (even with your wife, unless it's about to happen). When you catch your mind trying to go there, start davening immediately. Repeat your tefilla each and every time an inappropriate thought tries to land. As soon as you detect it. Here's the nusach I use, based on the 12 steps:
"Ribbono Shel Olam, I am powerless over lust and my life has become unmanageable.
Only you can restore me to sanity.
I turn my life and my lust over to your care and ask you to please heal me from this illness of lust. I don't want to lust, I only want You and a relationship with You and Your Torah, and appropriate attraction to my wife. Take my lust. Please, take my lust."
Your goal is to give up lust itself. Including in the bedroom. Physicality with your wife is for connecting, bonding. Not for getting high on your lust. Get access to the baalabatim's forum and take a look at my thread there entitled "High Infidelity" to see what happens when a woman lives with a lust addict and is treated like a lust object for too many years.
Hatzlocha!
It's not poshut. But there is a proven path to recovery. Direct your self control to this new path, and you will see success.
Alex