My urge to look at evil pictures and porn is irresistible.

Answer

Will you look at porn in front of your Ustaadh or parents or in public? We are sure you will say: "No, never!". If you can control your evil bestial nafs in front of people, why can‟t you control it in front of Allah Ta‟ala? Are you an atheist?

You are scared of being disgraced by people, therefore you will not look at porn in public, but you are not scared of Allah Ta‟ala when you are alone. That means that you do not believe that Allah Ta‟ala is watching you. You do not believe that the two Malaaikah are at your side recording the filth you are indulging in.

When the evil desire develops, tell yourself: "Here I am sinning in front of Allah Ta‟ala. I sin even though I know that Allah Ta‟ala is looking at me."

The disgrace in Qiyaamah is millions of times worse than the disgrace of this dunya. Reflect on the pangs of Maut and the punishment of the Qabr when the evil nafs commands you.