Coming from a hardcore porn addict (thankfully, it seems that I can think of myself as a
former addict these days

), I can sympathize. It’s a
seriously hard thing to let go of. Our minds are conditioned to enjoy it via indulgence in it for long times.
For me, a number of things helped. First of all, I needed time; it did not happen overnight. It should have, but human nature is what it is. I had to be patient and understand I couldn’t break porn addiction in a single go and just focus on slowly tapering off and whittling away the kinds of porn I watched or read. I got rid of and avoided the most hardcore stuff first and gradually worked my way down to written porn and non-pornographic but still sexually-titillating imagery. In earlier years, I had tried to break porn addiction but failed; I failed when I tried to do it all at once, then when temptation got the best of me, I backslid completely because I had failed at working an immediate solution to a problem that was beyond immediate correction. Slow and steady wins the race, and only by gradually working my problem down did I finally respond fully to God’s grace in my life to be able to truly fight back against lust.
Part of it was and is perspective. Since my reconversion, I have learned how to look at women as creations of God and in that sense, daughters of the Lord (regardless of their actual spiritual condition). I could not look at porn stars the same way again; even the most profligate porn “actress” I saw as someone who was created by God in the beginning of her life and intended for a life of holiness and nobility, not degrading whoredom. Given that, I found it increasingly difficult to look at porn stars again for the sake of gratifying my lusts at the time, and this attitude transferred to real-life women or even to pictures of women that were not pornographic in the least. Learning how to admire and adopt an essentially
chivalrous approach towards looking at and regarding women was and is essential in coming to break a porn addiction; that shift in perspective is important.
Naturally, prayer was and is just as essential. I could do nothing without God’s help and still cannot maintain this without going to the forms of prayer that I love most. The rosary and Mass I have found so very helpful, especially when I pray not just to be freed of sinful lusts but when I pray for that aforementioned perspective change to occur in me. Sacrificing time to God in prayer never goes ignored, and even taking time to stop when being tempted by lust and say even a short prayer (such as the Memorarae, a favorite of mine) can defuse a potentially sinful situation.
And of course, ridding myself of the near occasions of temptation was also essential. Cleaning out my computer of porn, deleting bookmarks, sabotaging password-protected sites of which I was a member (by changing passwords I knew to gibberish passwords that I could not ever remember for the life of me, effectively preventing future access) - all of it was important. Not just in removing near occasions of sin, but in the getting rid of porn I was taking
action to unite with my prayer and perspective changes. Action is essential for humans; God made us to respect deeds and place no faith in mere words or empty promises, and taking action to rid myself of porn were like exercises that helped me gain perspective and break the alluring nature of it.
As a traditionalist, I revere the past. Past attitudes about decency, morality, and sexuality I esteem highly as I do the vast bulk of all traditional moral opinions of Western civilization. As part of my anti-porn efforts, I remind myself of what traditional attitudes were in regards to sexuality and what the attitudes of our forebears might have been towards the pornography I have engaged in. Knowing that they would have been aghast at the stuff and would have devalued any person who engaged in such filth helped me to develop a sort of “role model” in those speculations about our forebears and traditional attitudes. God wrought a fine civilization through our ancestors because they submitted to His morality; aspiring towards that is the best thing we can do in these benighted ages.
I hope this helps! God bless and good luck in your efforts!