Welcome Yeshurun,
I completely relate to where you are right now. That's about where I was when I first discovered this site, and learned that I had an addiction and wasn't stam a evil person with nothing but evil thoughts. My sick thoughts were undermining any progress I may have made in any and all areas of my life, personal, spiritual and even professional.
I had hit bottom. I realized I couldn't, or at least really didn't want to go on living this contradiction.
The addiction fought back hard, terrified of losing my supply of the lust drug, which I had become so dependent on -- it was ME, or so I believed. My response has remained the same -- I surrender my lust to Hashem. I beg Him to take my lust because I cannot battle it on my own. I focus all my efforts on consistently surrendering my lust, letting it go.
I studied the 12 steps and began applying them earnestly and consistently. Being in a group would have been better, but I have remained sober for over three years by stubbornly surrendering my lust whenever it comes knocking. I continue to take it one nisayon at a time, one day at a time.
I see that you tried Taphsic and it didn't work for you. Taphsic is about fighting. It isn't necessary if you truly surrender your lust.
Vigilant shmiras eynayim is a double-edged sword, and both edges are for your advantage. First, it cuts off a major supply route of the lust drug. Secondly, it is a constant reminder of how sick my mind is, that I really can't look, or I'm cooked. Another reason I'm always hyping shmiras eynayim, especially to newcomers, is because it's something you can begin doing right away. You can commit to it this minute.
Had enough? Ready to break free?
Lets go!