21 year old, probably struggling with ED needs advice

[sensiti]

Guys sorry for keeping this thread so personal but I guess I have to start from one point and as I think this is the place that people know what they are talking I really hope to get as many answers as possible.
So this is my story and I will try to be explanatory for people who seek similar problems and offer solutions:

I dated with a girl for 1.5 year(first serious gf and like a stupid I really wanted to get married with her), between March 09 and July 10 somehow long distance is involved but when we were together also when I was visiting her we had a very active sex life, no problems with instant erections and libido. I was masturbating since there was a distance but not more than 3 per week. I guess before her I was masturbating regularly but not to porn, just plain imagination. But then I started to watch and masturbate to excessive amounts of porn, and each time I was wanting rougher stuff at some point I even enjoyed gay porn, you know because no emotion and they are rough etc. Still having heartbreak of this relationship even I was still in love with my ex, I dated with another girl in august, when I was with her like in car or in the street I was getting hard but maybe %60-70 but when in bed I tried to penetrate her after 1 min maybe I lost my erection, go limp so to say. It was still pleasurable for her but after changing position it was impossible to penetrate to her again. I need hand stimulation to enter. This is the event that I understood I have problems with my health. Earlier this year I actually recognized that I lost my morning woods, and I went to urologist and he said it was because of stress. Maybe that was true because I was about to graduate. I did and even Im not stressful now, I dont get erections. I try not to watch porn and reduce masturbation. Taking 6mg garlic, cod liver 800mg omega 3, drinking green tea, ginseng and ginko. Im not fat, 21 bmi, no smoking and occasional alcohol intake.
Im able to get erection with hand stimulation + porn visuals with good erection quality however with f-buddy I go limp. Also when I hear my neighbors having sex, it arouses me but I lose my erection pretty quick.
Ah something to add, I produce lots of precum when I am aroused. Even when I was 15 I had lot but now even more, this could be part of problem too.
Having ED at age of 21 sucks and even I want to think something else I need a good advice and solution. So guys any experience, solution, suggestion to me?

PS: Sorry for my bad english, I think in another language and write in english so it is a bit mixed up but I really want to hear some voice and hopefully get some hope.
Im planning to abstain from masturbation for 84 days so hopefully this february Ill write something good news.

PPS: I tried to cut porn, reduce sex and masturbation but failed constantly, so by publishing my story I guess it will help me a bit.

[CUSP82]

Gee you don't have any stress but you can't get a hardon! I guess if I was 21 and I couldn't get an erection I wouldn't be stressed! Don't you think that at your age and not being able to get an erection that just may add a bit of stress on you? The fact that you couldn't have full penetrating sex with a new girl well do you think that that may add a bit of stress to you? You broke up with a girl you may have wanted to marry and that doesn't put any stress on anybody does it?Just normal living seems to add stress to all of us but you've thrown in a few extra's huh and you don't think you're stressed? Well maybe you're not stresses and I'm the Czar of Russia! You can get an erection with some stimulation with your hand or porn so we know the plumbing works.Well if the plumbing works than there is nothing physically wrong down there.So if there is nothing physically wrong down there can you guess where the problem may be?