I have the problem of delayed ejaculation. Wikipedia describes it pretty well;
http://en.wikipedia.org/wiki/Delayed_ejaculation
Basically, I've been masturbating too much over the years, which means it is quite hard for me to orgasm with a partner due to the difference in how it feels. I don't have a girlfriend right now, but I've had three girlfriends over the last five years and the problem has been exactly the same. The same thing also happens with casual sex. So I'm pretty sure it's physical rather than psychological.
It usually gets better if I abstain from masturbating at least three days in a row. Then I become more sensitive and I think my response during sex is more like that of the average guy, i.e. the ability to climax in less than 5-10 minutes. If I've ejaculated within 24 hours, however, I generally won't be able to ejaculate again from intercourse, only from masturbation. The problem is that I'm addicted to masturbating. I've been trying to stop without luck at least ten times. I'm not getting any better at stopping. In the rest of my life I'm pretty disciplined and I don't really have any unhealthy addictions. I eat extremely healthy, do a lot of exercise, and am generally in great shape. I'm also running my career in a very organized way and have a great education. Addiction to masturbation is really my only lifestyle problem.
This problem interferes a lot with my sex life as I'm embarrased to tell it to any partner. I've never really explained to anyone why I have such a hard time coming. Girls always wonder since I have no time getting an erection and I can go for hours. Not fun after a while. I've found it too embarrasing to explain the actual cause so I generally dodge the topic. Not good for trust building I'm sure.
Any ideas on how I can get over my addiction?