Let me correct you if I may. Change "old me" to something like. "I'll always keep on going till the inevitable, but this time TYH for the strength to persevere ". There's no old me or new me. Those of us that have been blessed/cursed with these issues, (depending on the day) have to constantly keep in mind that every time we're on a device there's a very real possibility we'll view things we shouldn't. Speaking for myself, the biggest difference between then and now is my willingness to actually stay clean. I'll freely admit that back when I was trying to convince myself that I wanted to stop, I really didn't want to that seriously. Proof?
I knew exactly what NOT to do and did it anyway. I knew that fitness sights will inevitably have inappropriate pictures and videos, I knew that 2 clicks into a "men's health" website I'll be reading/watching about sex. I knew without a shadow of a doubt that if I went to the bathroom with my phone and started "just browsing" it wouldn't end well. That's exactly what happened, time and again until I got serious and stopped lying to myself. I can almost guarantee you that if you want to be fit and healthy, you know exactly what to do, the basics for sure. You don't need a webpage to know the following. Eat as few carbohydrates as possible. Minimal or zero sugar in beverages, stay hydrated,
Walk or cycle for 30/45 minutes a day. Once that's become routine, start doing pushups and pullups. Once you've done all that and you want to know more, buy a book IN A BOOKSTORE.
You're going to these webpages to eventually reach the page that'll cause problems. The fact that you went away is just feeding the myth that you're actually strong enough to win. You're not, I'm not, we're not. If you're serious about breaking free you've got to stop going to sights with the potential to lead you astray. If you keep telling yourself that "new me" stopped, "new me" will inevitably fall.
Today during שמונה עשרה Thank Hashem that your stupidity didn't cause what it used to. If you keep writing how "I almost" you'll eventually be writing about a fall.
You have the power of choice BEFORE you go to a clean or not really dirty sight.
Once you're there it's רחמי שמים that made you turn away.
I'm writing this because I wish that a few years ago when I was writing similar to what you're writing now, someone would've written me some reality.
Wishing you Hatzlacha on your journey.