My friends:
The best porn blocker is yourself.
In my case, for example: I still have a USB that has 64 GB of porn on it. However, I have kept it for many weeks.
This is why I tell you that the best porn blocker is yourself: when you have the will, the true will to take a break from artificial sexual stimulation, you will surely succeed.
Until now, I have had no interest in taking out that USB that I have stored in a very hidden place in the closet. why ? because I have had the will to stop using it. I don't need to erase the USB, I don't need to destroy the Computer, and I don't need to buy a porn "blocker". The true will is the one that serves.