Hi,I have no problem staying hard masturbating but when I'm with my partner and we're about to have sex my penis goes soft I can feel it go soft and when she giving me a blowjob and she stops for a second I can feel my penis going soft.

we tried having sex multiple times we were only successful once but I had an half of boner.it was my first time having sex and before that I watched a lot of porn like everyday and maturabed everyday.

do I have ed?