NNN and other willpower challenges are self defeating in the long term. Ultimately it's all based on the idea that you are depriving yourself and even if you hold out? What happens after? Most see it as a reward getting to resume at the end while hoping or kidding themselves that maybe they won't feel the need to resume. Because we know deep down it does need to stop. Read the guide. Follow the program. Eventually that creeping desire to masturbate daily and use porn or other material will get in the way of a healthy sex life, and happy relationship.