If you just want to reduce the amount of time spent, set a sensible limit, and use an alarm, or reminder in your PDA, or cell/mobile phone. Have some things ready to do, then.
Check out: http://dailystrength.org/c/Sex-Pornography-Addiction/support-group & http://www.sexualrecovery.com/pornography-addiction.php
Treating Pornography Addiction: The Essential Tools for Recovery by Ph.D. Kevin B. Skinner, &
In The Shadows of The Net: Breaking Free from Compulsive Online Sexual Behavior by Patrick Carnes Ph.D., David L. Delmonico Ph.D., Elizabeth Griffin M.A., and Joseph M. Moriarity, &
The Drug of the New Millennium - The Brain Science Behind Internet Pornography Use by Mark B. Kastleman,
from your bookstore, or amazon.com
The subject of addiction is addressed at http://your-mental-health.8m.com/blank_30.html View page P about dating, and join some church youth groups, to better enable your social development.
Hypnosis is merely a heightened state of suggestibility, in which you are better able to communicate with your subconscious mind. 85% of people are suggestible to some degree; 15% - 20% highly so, and 15% - 20% aren't much at all, so you could either preferably seek professional hypnotherapy, or, if not an option, hypnosisdownloads.com has: Porn Addiction & Performance Anxiety.
More at amazon.com or try the free hypnosis for addictions at 8m.com