Yes journal. And come here and read your journal entries BEFORE you hit porn. Every time.
But also this: This IS an addiction. Addiction is a mental health issue. We cannot feel so ashamed of failing. Be so down on ourselves. Think so horribly of ourselves. We have an illness. It doesn't excuse the behaviour. But we can admit without shame that it's too hard to do it without some form of help. People don't heal from other illnesses just by having will power. Mental health, unfortunately, is still very stigmatized, and porn addiction I would say is worse than even regular addictions in some regards (who wants to hear that you're a porn addict?! And will they even believe you?). We aren't even taken seriously when we say we are addicted to that. But we KNOW we are.
What you can control is getting the help you need. True addiction requires help to overcome in most cases - more than willpower. What you take ownership of is that part - getting help. You can beat yourself up for not getting help. But don't beat yourself up just for not being able to overcome your mental health struggle just because you WANT to. It takes more than that. What does it take for you? It's different for all of us. It could be counselling, it could be blockers, it could just be the RN community, or it could be that you need SAA meetings. It could be an accountability partner, it could be controlling other things that lead you to porn (anxiety, stress etc) etc.
Strength, brother!