Serious question: why? If there was a pill you could take that would magically make you disciplined and hard working, would you turn it down? The pill wouldn't make you unable to play computer games, or surf the web; it would just mean that if you said to yourself "for the next two hours I'm going to do X, without getting distracted by computer games or surfing the web" you would carry that intention out.

I've always thought of "discipline" as a bit of a rip-off. To me, "discipline" suggests "the willingness to do something unpleasant now, in exchange for a later reward." The problem with this is that, even though you do get the reward, you've spent all that time doing something unpleasant, when you could have been doing something pleasant - such as playing video games - instead. It doesn't seem like a good way to maximize "moments of pleasure" over the near future. Being lazy and undisciplined means I don't go off chasing future rewards that turn out not to be worth the trouble.

My mom says that, as a young child, I had a "low frustration tolerance," which might explain a lot. I suspect that "doing something I don't feel like" feels worse to me than it does to most people, although I can't prove this. In college, I once started to feel physically ill whenever I looked at my "Engineering Mechanics - Statics" textbook. There was something deep inside me, screaming, "This is awful! Avoid this!" whenever I was confronted with my homework. I only ever got work done when I became more afraid of not doing it than I was of doing it, if that makes any sense.