Know the root - knowing the root of the problem will help you in solving the problem. A problem you don't about is a problem you can't solve.
So ask your self this questions
1.why am I watching it?
2. Am I watching it due to emotional breakdown?
When you must have known the root of the problem. Try to stop it from the root.
2. Challenge those thoughts of watching it.
Any thoughts that pushes you into watching it challenge it. Stop covering it and face it. Refuse to give in to watching it. Silence those thoughts in your head.
3. Make plans for the urges:
Make plans on where or how to release the urge for watching it.. Whenever the urge comes up I want you to have 5 things you can go to in or the to get your self back to normal. Create a healthy coping mechanism eg running ,medication, journalling, yoga etc.
Try these steps, it will help you control your self towards porn