HELP: What kind of ED am I suffering from?

In December 2020, for the first time I had a sexual encounter with no/weak erections not enough for sex. Then I got ED pills and ever since I start using it, I can go for 3 rounds within a few hours with that woman now.

But I am now wondering: what is going on? Is my ED psychological, physical,...? What can I do to get over it?

++MY SYMPTOMS++

• So basically there are 2 ways I usually get hard - in both cases, without ED pills, I usually lose it fairly quickly:
  • 1. I masturbate with dirty thoughts --> I get a 80% erection. Once I stop stimulating, my hard on vanishes within seconds
       
  • 2. I get hard during foreplay (kissing, etc.) - or even when just thinking about the lady (no manual stimulation) --> I get about 95-100% hard. It stays for a bit longer, but once we put on the condom, I significantly lose rigidity and have difficulty penetrating. Sometimes it works after waiting with the condom put on and kissing again so that I can eventually penetrate.
    
    
  • Once I penetrate and we have sex, my erection stays at about 80% quite solidly.
    
• With ED pills I do not have the above issues with 1) and 2) - I stay 100% hard until I orgasm (which takes about 20-30mins, depending on how long we want to go).
  
  
• With the ED pills I can go 3 rounds in about 3-4 hours. Rigidity is a little bit different though, but enough to penetrate:
  
  • First round with ED pills: 100% rock hard.
    
    
  • Second round: No problem with ED pills - again, 100% hard.
    
    
  • Third round: I also get hard, but perhaps only at about 80-90%. I can still penetrate though, the erection mostly stays.

++MY BACKGROUND++

• Before the ED problems, the last time I had sex was about 18 months ago.
  
  • At that time, I did NOT need ED pills. With that woman, I could go three rounds a night without any problems or helping meds.
    
• After that last "successful" encounter, I went through a pretty tough time: I started a new job with a terrible work-life balance (15-16 hrs of work a day, a lot of stress). I started to show symptoms of burnout (can't get up on weekends, easy tasks overwhelm me, like washing clothes, cooking, etc.).
  
  
• I also went through a tough break up and I still miss that person.
  
  
• Over the last 18 months, I gained some 7-8 kilos (my BMI is now about 26). I recently started to exercise again. During my youth, I was quite overweight, but never had any problems with erections (other than perhaps performance anxiety at times...).
  
  
• Over that last 18 months, I masturbated/edged 2-3 times a day (for a total of about 2 hours on average). I used hard core short porn clips to do that. Once the ED issues came up I stopped using porn, but still edge, though just once a day for about 20mins.
  
  
• I am 34 yrs old. I recently went to the urologist. He said it's probably psychological and gave me ED pills.
  
  • Ultrasound, blood levels (T-levels) were all fine. Note that the Doc didn't inject anything into my penis, the ultrasound was in flaccid state. But he said the arteries "look good".

++MY Questions++

• Given all these "facts": What could be the cause for my ED? Organic? Psychological? Both?
  
  
• Naturally, I first thought it may be all psychological due to the fact that 1.5 years ago everything was in good order.
  
  • But the fact that I can get hard, but just lose it quickly worries me a lot. If psychological, I wouldn't get hard in the first place, right?
    
    
  • I am therefore really scared that I have venous leak...
    
• In any case: Obviously, I don't want to use ED pills for the rest of my life.
  

I am quite desperate...appreciate any thoghts!