I have been married for 8 months now and I have still not been able to penetrate my wife. My problem is that whenever I take my penis near her vagina I lose my erection. My wife too is a little fearful of the penetration. In some cases whenever I am able to maintain my erection I am only able to put the tip of the penis inside and nothing more. We are working professionals and feel tired at the end of the day. Considering that we have not been able to achieve penetrative sex solely due to erectile dysfunction