I'm 31 years old guy. I start masturbation when I was 9-10 years old. I lost my virginity when I was 16 years old. The date, when I start sex still I could not get satisfy from sex life. My sex drive is only for 5-10 sec. Sometimes during foreplay I get discharge. I remember in my 15 years sex life I satisfy only for two times. Once three years ago, I did sex 3 times in 45 minutes. Now a days my penis is not getting tightness and I'm feeling its getting small. Sometimes I used pills for long time sex which was prescribed by my doctor but all were in vain. Please suggest me for my future. I don't take any type of drug or alcohol. In 3 months I'm going to get marriage.