I get hard during foreplay but then I lose the erection. HELP

[JackRenford]

So I?m 18 and basically I just started hanging out with this really attractive girl and I?m actually really interested in her. So we were making out the other day and I was able to get hard then but as soon as she started going down on me I started to go soft. We got interrupted and stopped, but later on we were about to actually get into sex and as soon as I put it in I went from hard to soft after like 3 strokes. I?m just so unbelievably embarrassed and need help ASAP.

 

[Jeks]

How does your porn consumption look like?

If you dont get an erection while masturbating without porn, but not with your partner, its performance anxiety. Try to chill and relax.
If you dont get an erection while masturbating without porn, but only with porn, you have got PIED (porn-induced-erectyle dysfunction). Check out yourbrainonporn.com and educate yourself about it. Its a common problem in young men (and women), which is unfortunately still not widely discussed in medicine and psychology. Do a reboot and you will get healthy.
If you cant get an erection on any occasion, you might have severe PIED or a physiological issue. Go see a doctor. If he doesnt find anything, you are likely having severe PIED.