Issues when with Girl in Bed, need advice *POTENTIAL TRIGGER TO SOME*

Heya fellow fapstronauts!
I am not sure if some or all of you face issues like this, but on day 16 of NoFap, I got a girl back home. We drank a couple of drinks. And then, we got into bed. Everything seemed fine during foreplay, and I could feel my penis being rock hard (due to the nofap streak I presume), but as soon as it was time to have sex, I reached out for the condom, and whilst trying to put on the condom, the 'pipe' went limp. This kept on happening throughout the night. I was just not able to keep it up whilst trying to put on the condom. Even in the morning, when I had a strong erection, and my body was rested and void of any alcohol that could cause such a predicament, the same thing happened.

The girl definitely left my house in the morning extremely disappointed. Now I dunno why this happened, but I have faced issues like this during previous sexual encounters too. Is it a case of erectile dysfunction due to porn and masturbation? Is this normal during a 16 day streak? Or could it just be anxiety due to previous failed attempts at achieving a successful hard-on for the length of a sexual event?

I am really scared that I might need to turn to meds to be able to satisfy girls in the future. I don't want to do that. Please help! I am a 24 year old individual who has fapped since the age of 15 (almost everyday).