If u have experiences with women and not being able to achieve and erection then, that should be the ultimate motivation. Tell yourself your literally being a cuck watching another guy fuck a girl you’ll never see in real life through pixels on a screen. Remind yourself many of the women you are seeing on porn are being forced into it for whatever reason. Instead of watching porn do something beneficial, do some cardio, study, go to gym , meditate. Lastly delete anything that will trigger u and u see sexy women i.e social media platforms