I feel you, man. There was a time when I couldn't do it at all, I felt like I couldn't stop thinking about those images in my head. But with training, it should get better, it did for me. Maybe looking into some practices, like what @Logiprox talks about could help if you find that you really can't do it other way, I personally developed a way on my own to avoid the fantasies and thoughts. What I do is I divert my attention to something else. I either focus harder on what I'm doing or I imagine myself doing other activity, to replace the porn that play in my mind with a clip of me doing something. Also the mindset is important. I tell myself things like: "You've made it to far, you know that going to day 1 will be very devastating for you." ; "If you start edging to porn now, it will be an euphoric activity for only some minutes then you always get drained and regret starting in the first place, it's not worth it." ; "You want to check out if you high social anxiety is porn created so you need to go on without porn." And stuff like that, you know what I'm saying? But the mindset alone would not work without the "Keep porn dopamine low" practice that I follow. Keeping the porn dopamine low I dare to say it's a must in any reboot. But, the idea here is to find whatever works for you. If you can't make it work on your own like me, do meditation, do other things, try everything and see what works, you need to find a way to stop paying attention to the thoughts. I can see it happens so fast for you, you said it only took half a minute to go from 0 to 100 and wake up on chat rooms and stuff. We all know how this goes, I'm sure everyone here had a period when everything happened so fast like that, I had a period in my life some years ago when I entered "Autopilot" I basically just woke up in front of the computer watching. And I used to go crazy about it, "How do I stop myself from waking up here?" But it gets better with time and practice, you will get to a point where you can see it coming, your reaction time will get better and faster. But before this, you have to find a thing to use to help you disengage from the thoughts. Then with practice this will become faster and a habit in itself, you will get to the point where it's automatic. But again, practice and patience are necessary. I didn't jump right into this method at the beginning of the year out of nowhere, I've practiced it in the past, I've achieved some success in the summer of 2021 but it didn't go very well because it was not tight yet but eventually I got to the point where it started working better. You got this, bro! I'm sure you'll figure it out! Never stop searching what works for you.