When you seek out porn and the eventual orgasm, you get a huge spike in dopamine. Your brain then processes this huge spike as a good thing and so a transcription factor called Delta fosb accumulates.

This leads to your brain putting a high value on porn and therefore future cues lead to spikes in dopamine, even before you go ahead and seek out porn.

So basically, the more porn you watch, often the harder it can become (At least from a psychological perspective) to quit.

However, there is hope!

I personally don't like the whole 'addiction' model much. It offers little value and makes quitting porn seem like an even more difficult task than it really is.

The truth is that self-compassion is needed to quit. So sure, you should totally aim to quit cold-turkey... but equally, if you do have a setback - don't worry about it!

We are all human, we all make mistakes. It's those of us who choose to never give up that will reap the rewards of success in the end!