Get angry.

If you are on the verge of a relapse because of pure desire and craving, I believe there is one thing that can save you. Get fucking angry.

If you feel worthless, low energy, and you feel like the only thing that will take away the pain is porn...and the craving is so strong you feel pulled toward it with great force...

Feel the desire. Accept the fact that you want it, that you desire the porn. FEEL THE CRAVING. Then get fucking angry and feel all the rage in your body build up as you move your body through space. Walk. Run. Pick up a weight and curl it 12 times. Envision what true fucking rage is and feel it, express it! Yell. Do pushups. Recall all the bullshit in your life that pisses you off! What does rage feel like?! Ah! The only way to change your state is by taking steps. When you feel overwhelming unfulfilled desire, ANGER will get you closer to pride, then contentment, courage, willingness, activity, acceptance, intelligence, happiness.

This idea came from a book called Levels of Energy by Frederick Dodson. Check it out, it's pretty good.