First of all think one day at a time,today you can do it try to keep your self busy, hang out with friends, make a chavrusa for each day...
you are so lucky that you know there is a issue one week before your wedding but sorry to break the news to you, marriage or filters won't help, no matter how attractive your wife is it won't fulfill your fantasies and the stuff you see in movies... You need to change the way you think, it is amazing that you are able to start working on this before your wedding, call someone and talk to the professionals, read the book sa.
After being clean for a week and being on this forum, reading sa and talking to people I came to realize that when I was with my wife all I thought about was me, my desires, my fantasy, what makes me feel good etc...if it did not go as I wanted then I would go to p..n and m and even if it went well I still needed more so I would still go to the p..n, I just want more and more and cannot control myself.
But now I am changing the way I think, I put my desires on the side and think about us, so far (one time) it has been great, the actions did not change, I do not want to create any triggers so I will not go in to details but the bottom line is we have to change our attitude, it is like when they bring out the cholent in shul you first reaction might be to grab it and eat it like a chazer, you mouth gets very watery etc. But you want to have manners so you control yourself wait for it to come to you and you eat it slow and you survived, it tasted just fine and you are satisfied, but if you get in habit of eating like a chazer it is hard to stop. the same thing ( almost) is with s we need to premeditated and change the way we think about it and what how want to feel, we need to slow down we don't need to grab and jump in like a hungry chazer, you will live and it will taste just as good and in the long run even better ( btw you can apply the same thing with sushi
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Keep strong my friends and for now think ONE DAY AT A TIME,