I think from having read various forums on this topic, nerves and anxiety can really influence how you go about this whole thing. I never thought it would be like this though. The longer you wait maybe the more difficult, bigger build up to the actual moment.

I still a worry though about maintaining erections. I was masturbating recently and found that I still need to touch myself and get aroused in order for that erection to be maintained. The moment I stop, it starts getting softer.

I watched mybrainonporn videos and yes there's plenty of information there. It mentions something called AROUSAL ADDICTION. What are your thoughts on this?

That's the affect of porn on the brain according to that. Everytime you look at porn, whether it's hardcore or softcore ( and btw I only look at softcore material) you are getting hits of dopamine in the brain over and over. And the brain cannot deal with this which leads to over-stimulation over time. It's similar to other addictions, say to drugs, alcohol etc.