First, welcome to JWN! Second, it wasn't until after he started to control the sex lives of his cult members that Charles Manson was able to get them to kill for him. Think about that concept while comparing it to the Watchtower. Third, it looks like Giordano has given you a good start, but please study the science of sex. Although there is a wide sexual spectrum among all creatures, masturbation is a common practice. Fourth, determine whether or not you are really addicted to porn. While addiction is a complex subject, generally a practice is not an addiction unless it disrupts your daily life. Study up on addiction, and/or see a therapist to see if it's a big a problem as you think it is.
The world is your oyster. You are free to determine what your actions will be and how you live your life. It can be scary, but it's part of growing up and reaching emotional maturity.