Hi
Your main trigger is when you stay alone at home. Even sometimes you want to stay at home alone. I know because that was one of my triggers in the past. I wished to stay alone and starting to search porn like crazy. You have to change that behaviour.
I learned that it was the dopamine monster that makes click when it knows that you feeling down,high, bored, sad, alone? It wants action but everyday wants it harder and different stuff.
You know what? when you stay alone at home, change your behaviour and do another thing like meditation, exercise or both, try to focus your life in a different way. Try it, don't give up