I'd like to share my anecdotal experience. In all these years where I've tried to block Facebook, Reddit, Quora, etc... I've found that I just move to another

I'd like to share my anecdotal experience. In all these years where I've tried to block Facebook, Reddit, Quora, etc... I've found that I just move to another "time-wasting" site. The absolute best way that I prevented procrastination was by developing some hobbies that are less addictive. Even though I am quite older than the target audience, I have a Pokemon game and a DS, which I pick up whenever I feel like not working. I play it for 15-20 minutes and I'm ready to get back to work. Before that, it was learning about some new programming language. The hobby needs to be gratifying and challenging to prevent addiction. My two cents.