Porn and erection problems/staying hard

Ok, first let me clarify that I do not have a physical ED problem, I can get erections and keep them just fine...just not when with a girl A few months back I broke up with my gf of one year, with/before her never had any sexual problems. After we broke up, I didn't have sex for 6 months, during that time watched a lot of porn and did a lot of masturbation.

Well, a few days back I hooked up with a girl and went home with her. Couldn't get and erection to save my life. She was very attractive, that was not the issue. The only way to get a full erection was for her to give me head, but the erection would disappear after I started having sex with her in about a minute. We tried this a few times, and then I gave up becoming more and more stressed. Now I'm worried. Any advice you can give me will be of help, thanks

 

very commonly it's the anxiety about not getting an erection that causes you to not get an erection. As soon as you are ok with not getting hard, the more likely it will happen.

sometimes another issue is that you are forcing yourself into a sexual situation when you really don't want to be in one.

 

I don’t understand this relation of masturbating while watching porn. I know there is nothing wrong with masturbation but there sounds too gross to speak about.