carrbc try and set yourself a goal of making it three days. Tell your head and your dick “In three days I will watch porn” Try to trick it into having to wait for the treat at the end of the stick that it can never reach.
That is what I had to do in order to get a long of enough spurt of days in that I could avoid porn. I would always relapse into a video of somesort in the first three days and then the hardest day would be the 7th day. After which it got a lot easier to avoid porn for longer amounts of time.
Try that instead. Maybe telling your brain and your dick straight off the bat that you are done cold turkey is kicking them into porn frenzy overdrive and making it harder for you. You understand?
Best of luck to you mate, but I have faith in you.