Hi Russell, nice meeting you, my name’s Matt and I am recovering from the very same thing. It sounds like you are very keen to find some change - that’s a good start. I have the same suggestion as @Antoine: finding a group is a good place to start. Finding others in recovery from porn & sex addiction makes a huge difference: it helps you get outside your own head. Neal made a good list of groups here:
Keep checking in here, looking forward to seeing more of you!