Both of your stories are very common and typical.Over time, masturabting to internet porn can desensitize the brain.The inability to get excited by a real-life sexual partner is called copulatory impotence. .On our recovery forums, we have men in their teens with porn-induced ED.
Chronic erectile dysfunction is NOT a problem for men under 40 - or at least it wasn't until Internet porn arrived. Even, smoking and drinking don't take their toll until later in your lives.
The problem is in your brain, not your penis. Internet porn can become an addiction, and with all addictions the brain changes, or adapts. It does not matter if the addiction is to a substance or whether it is a behavioral addiction, the same brain changes result.
Today's internet porn is nothing at all like our ancestors ever encountered, with the constant novelty and genres of extreme porn. Unlike yesterday's Playboy, Internet porn overstimulates the brain structures responsible for libido, erections, and addiction.
Brain changes include a drop in dopamine receptors in the reward circuitry. Reducing the amount of dopamine receptors decreases your pleasure response to "normal" stimuli. In other words, real-life sexual partners and previous porn won't excite your brain enough to get your penis going. Turning on dopamine receptors is how you get turned on.
Here are two excellent presentations, by a science teacher, on the effects of pornography on the brain. They are non-religious, non-judgmental, and science based.
Erectile Dysfunction and Porn:
http://yourbrainonporn.com/erectile-dysfunction-and-porn
Your Brain on Porn - Porn Addiction:
http://yourbrainonporn.com/your-brain-on-porn-series
“How I Recovered from Porn-related Erectile Dysfunction”
http://yourbrainonporn.com/how-i-recovered-from-porn-related-erectile-dysfunction
As Porn Goes Up, Performance Goes Down?
http://yourbrainonporn.com/as-porn-goes-up-performance-goes-down
Hi, I'm not a doctor, but I've read that watching a lot of porn changes the way you are aroused. Also, if you are masturbating twice a day, maybe that is another reason for losing it as soon as you put on a condom and get inside. I've not had much sexual experience. In fact, I'm 26 and I have only had sex 5 times with two different women. I watched a lot of porn too and masturbated and I noticed that I started to become more aroused by porn and less aroused by my interaction with women throughout the day than I used to be.
I know its difficult, but perhaps you should try decreasing the amount of porn you watch along with the number of times you masterbate. If you can, try to cut it out altogether for a while.... At least until the next time you have sex if its not going to be for another week or so and see how it works. Experiment with different things including not smoking and see how it works. If you are smoking a pack a day, you may not be as healthy as you feel, which can be another contributor.
Like I said, I'm not a doc, but I've done a lot of reading after my experiences. So I hope you get it back together.