Hello sir. I can understand the distress you are through. Your complaints are suggestive of a condition called premature ejaculation. The threshold for ejaculation in such a case is very short. Resulting is that one may reach ejaculation very quickly and sex is not satisfying. Although, stress and anxiety are known to be two major risk factors for premature ejaculation, in many cases there may not be any specific cause seen. The important fact is that it is completely curable. With suitable medications and instructions it can be completely cured.