I am a 26-year-old male with a weight of 85 kg and a height of 5 feet 10 inches. Recently, I was not able to get an erection while doing sex and was also ejaculating very soon. This happened two days ago with my current partner while we were having sex for the first time and also with my ex-partner some six months ago. It is very disturbing and takes a mental toll on me. Earlier, I had a pretty healthy and regular sex life. Please help.