a masturbator said:

I know I  am far down a slippery slope, and there is very little chance I
will ever  recover my normal manhood
You have your normal manhood, good buddy: you get a hard on and you can 
masturbate to orgasm. All your moving parts are in perfect working order. It’s 
not about Viagra, because what you need to stimulate is not your cock but your 
libido.
Have you heard of the Coolidge Effect? President Coolidge and his wife were 
visiting a chicken farm. They split up for the visit in order to save time.
Mrs  Coolidge was shown a rooster and was told that it could perform at  least
fifty times a day. Her comment was "Please tell the President."
When The President arrived at the rooster’s pen, the guide relayed the  story
about the rooster’s prowess and Mrs Coolidge’s comment. The President  paused
for a moment, then asked: "Always with the same hen?" "No, Mr President, 
with fifty different hens", to which the President replied: "Please tell Mrs 
Coolidge."
In other words, my friend, to remain sexually active, humans need a  constant
stimulus. Unlike other animals, we do not have a limited sexually  active
season. We want to be sexually active all the time. So, to make that  possible,
we must add the magic ingredient (stimulus) called "imagination" to  sustain
our sex drive. With masturbation, it is easy to do so.: our fantasies  are
endless and our cocks react accordingly. With a partner in sexual  intercourse, it
is difficult.because the same old grind is the same old grind.
That’s the problem. I leave you to work out the solution. More hens? Same 
hen, different stimuli? Me, I just stick to wanking these days.