What worked really well for improving my self-control regarding porn was putting money in the game. Whenever you trip, I have to donate 100€ to an organization I don't like (in other words, hate). It should be really painful to donate this money.

I once tripped and it was extremely painful. Don't want to do this again.

Depending on how important this is to you, I'd increase/decrease the amount of money on the table.

It's very helpful to do this together with a friend, to keep each other accountable.