This addiction is on the rise again. Using herion requires involvement in an underground culture. It is expensive, it involves sticking a needle into one's own body, and it consumes and destroys life. Yet more and more people are doing it. Because it feels good.
Success can feel good, too.
It can feel very good. Once you've had a small success, then it becomes easier to get addicted to success. That's why it is important to set some small, quickly attainable goals. Each time you experience success, savor it. Get yourself addicted to success, and you can't help but succeed.