You have to actually want to quit, though. Increasing the friction for access is a gimmick at best. Right now you're in the self deception phase; you know it's bad and that you should quit, and intellectually you want to quit, but your lizard brain doesn't agree.

Look at how folks who successfully quit porn do it.

> a week or two before falling into old habits

You need to replace old habits with new habits.

Also, as a random aside, get your hormones checked. An imbalance of sex hormones can make things like concentration exceedingly difficult.

> any progress

You've fallen victim of the "fuck it"s. You assume if you fail you might as well not try. A habit is that behavior we return to, and this goes for things we don't habitually do, too. Just because you fuck up doesn't mean you should quit. That nagging voice in your head, the one that says "why even bother, you'll just screw up again" is a liar.

You must get up. You must try again. If you listen to that voice you won't even try. Don't believe the inner labeling of "I'm just a failure", if you believe that you'll be right.

> comfort / a distraction

And there it is. You are dependant on the internet for a dopamine dump.