Twelve years

How long can a person go without having sexual desires? I haven't been able to have sex since 1996, and the year is 2008. Wow that has got to be a record, twelve years of not having sexual relations. I believe what happen is when I found I was infertile and my desire to have sex died. So that was a long time ago. 12 years, damn never gave that much thought. Oh there has been women in my life but each time it failed to reach hardness and then nothing, they used to say it was nerves.
The desire wasn't obtainable, and one day it will be then it will be too late. What's the point if I can not have children, I will only concentrate on what is important, and that is me.