hmmmm, sounds like a challange, lol well hard to say it could be for many reasons or you just have not found the right guy/girl i am just glad i am a man we dotn tend to have these issues......well i did for awhile i was on a drug.....cymbalta...yes yes an anti depressant.and well it made it very difficult for me to cum by myself or from sex....took well a long time either way....which well the partner at the time loved until she had to suck me off that would take an hour and me helping so to speak watching porn every trick in the book....so in short dont really know what adviose to give you