Thoughts about reasons for PIED. Compulsive and HD video?

Hello Folks,
I would like to share here some my thoughts about the reasons for PIED.
I remember that before couple of years ago I watched porn on regularly base and used to have great sex with partners and prostitutes. By that time I had great sexual performance, strong and long erection.
Nowadays I suffering PIED. Last years I am not able to achieve an erection stimulated by real girl. I can get it on only from Porn and thoughts for girls in dark place or closed eyes. I read many articles and Noah's book Wack - Addicted to Internet Porn and I now that this is normal for addicted porn users.
But I asking myself why I had no PIED in past times. And I think that the reasons could be two.

1. Obsessive compulsive consuming to the Porn. Usually I cut the best scenes of the vides to small scenes between 0.5 seconds and 2 minutes. During this time I am getting arousal and masturbating. According to two different doctors this is an Obsessive compulsive disorder. 

2. The High Definition video. Since 2013 I have huge Full HD TV (50 inches) where I watch Porn stuff. Usually I run from 3 to 5 different video tabs, sometimes some non nude pictures, masturbate and come.
I know pretty well that this procedure rapping my brain and make me high.

I am wondering, could these two things to be the main reasons for developing of PIED?
What do you think? I will be glad if you share your opinions.

Thank you in advance.
 
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