I don't know if this is casual or a problem with me, I have some doubts about my sexual aspects. Basically if I watch porn I feel much more pleasure then in bed, and not that I had done it many times, it will max like 2-3 times till now at the age of 26. I can't even perform well, I mean I start well but then within few minutes something happens and everything (erection, pleasure, confidence, energy) goes down and I feel very bad and under confident. May be that's the reason I don't go for this anymore even tough if I have options, it's mentally disturbing. Is there any way to improve these things?