Hello
Thanks for your query.Based on the facts that you have posted it appears that you have problem of Erectile Dysfunction .In absence if organic cause the cause of erectile dysfunction 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.
3)Take anti oxidants like Almonds 5-6 everyday..
4) Avoid alcohol and smoking.
You can continue taking Viagra 1 hour before sex.
Dr.Patil

Hello dear..

Regarding the problem of Erectile dysfunction, it is due to decreased blood supply to the penis.

And medications like Viagra increase blood flow to penis & maintains erection.
It can be improved by having a diet rich in fruits, vegetables, fish, nuts & honey.

Avoid stress...practice meditation..this helps in improving concentration & builds up the confidence level.
Avoid smoking & alcohol.
You can also do oil massage of the penis...it increases blood flow & maintains the erection.

Despite these measures, if you experience difficulty, it will be better to rule out other causes like high blood pressure, blood sugar and other local causes that impair blood flow to your genital organ.
One more thing...avoid consuming any over the counter medication which claim to increase the size of penis or improve performance...it may be harmful.

Wishing you a Healthy Life.
Take care.