That deep feeling of loneliness really is the biggest challenge for NoFap and can have a toll on self esteem at times. I'm having the most issue with it more than even the PMO itself, which I think is the trigger that started me down that path to watching P. I'm now seeing clearly with the issues within my life due to the lifted brain fog and extra energy to see that bigger picture. I was even getting lonely at the end of a 12 year marriage. You can be around what you thought was your most trusted friend, and end up being treated like you don't exist. Or even surrounded by many friends. Loneliness is a mindset anyone can fall into and extremely difficult to climb out of! But I'm here to tell you that theres a lot of people out there that are married or have a person in there life are still feeling lonely. It seems that many of my friends that have someone complain to me all the time about feeling it. Even some girlfriends I've had made me want to be alone. I guess now we need to figure out a way to rid ourselves of this illusion. I'm no expert at it but I think I've stumbled on something useful. Replace those thoughts with better thoughts. Sounds easy enough right? Well it is if you exersize it. The more and more I do it, the the easier it is to do.