I always thought it was alcohol...need advice!

Hey guys, new user here hoping to get some advice as I've told no one about my condition!

I am a 20 year old virgin and have never had a girlfriend. I only realised I had porn-induced ED about a month ago when I failed to get erect even when I was sober. Before that I had a few sexual encounters where I failed to get it up but I just thought it was because I was drunk!

I am currently in the rebooting process and have now gone 2 weeks without porn or masturbating, and I am not looking back! I haven't even had an urge because I am so desperate to have sex...having the label of a virgin is killing me inside.

I'm in a bit of a sticky situation as I am currently on exchange in Sweden and I've been dating this American girl, however have failed to have sex 4 times now. And the thing is she leaves to go back home in a few weeks, so I only have a small window of opportunity to get it done. Last time I tried a pill to help, which didn't really work. I was able to get an erection but wouldn't stay up long enough to be able to put it in.

I really want to have sex with he before she leaves but I have a feeling that may not be possible anymore as I realise this reboot takes a long time...

Basically I am very stressed as I am going back home to Australia in 3 months time and I really don't want to be a virgin when I get back, because I never get with any girls back home, and I feel if I don't do it within the next 3 months, god knows how much longer it will be... However travelling and living overseas with my own apartment has created so many more opportunities to hook up with girls. But the stressful thing is as hard as I try (6 times in total now) I cant have sex.

Do you guys think it is possible for me to do it within the next 3 months, as I've only just started my reboot?

Also, should I keep trying with erectile dysfunction medication or is that just useless?

Thanks!