Hello Thanks for your query,based on the facts that you have posted it appears that you have problem of premature ejaculation. This is common problem and almost 40-50 % of men suffer this at some point of time in sexual life. In absence of any major health issue cause of premature ejaculation is mind related and due to performance anxiety.Following measure will help you to boost up your confidence and getting good erection.and delay ejaculation. 1) Practice regular exercise for 45 minutes followed by meditation for 1/2 an hour in the morning. 2) Take high protein diet rich in vegetables and fruits and Vitamin A,C,D,E.and Zinc 3)Take anti oxidants like Almonds 5-6 everyday.. 4) Avoid alcohol and smoking.. Please take your wife into confidence and consult qualified Sexologist to modify sex techniques like stop and start technique or squeeze technique to delay ejaculation. Taking drugs like Viagra will help to get good hard sustainable erection to have enjoyable sex for a long time. Dr.Patil.