[roxstar]

In your hosts file add:

    127.0.0.1 news.ycombinator.com
    127.0.0.1 other.distracting.site
    ...etc

Windows, Linux, MacOS all have a hosts file if you don't know where it is google it real quick. Editing a file is pretty annoying for me especially if the file requires admin rights, I think mac has a few distraction apps (google should probably find some) and windows/linux probably do too.

Disciplining yourself with a timer reward system may work well for some people (1 hour working, 10 minutes web browsing set to an egg timer).