Have you considered using tools like LeechBlock for Firefox?
The issue is psychological, not mechanical. If I elect not to go to the site, I don't go to the site. When electing to not go to the site causes discomfort, something else is going on that I want to examine.
Kaj Sotala said:
So maybe we should celebrate failed attempts more often ... I for one can't think of anything I've failed at recently, which is probably a sign that I'm not trying enough new things.
So, what specific things have you failed at recently?