> I’m already addicted and spent more time than I should.

noprocrast + maxvisit + minaway on https://news.ycombinator.com/user?id=Brajeshwar is your friend for this :)

> In my profile, what is noprocrast? - It's a way to help you prevent yourself from spending too much time on HN. If you turn it on you'll only be allowed to visit the site for maxvisit minutes at a time, with gaps of minaway minutes in between. The defaults are 20 and 180, which would let you view the site for 20 minutes at a time, and then not allow you back in for 3 hours. - https://news.ycombinator.com/newsfaq.html

Done. Trying this one out.