I'm not sure I follow. If I can do what I want to do online and do it fast, then I run out of things to do much faster and I can get off the internet for a bit or do anything else.

You mean you've reached the end of the Internet? What's it like? :-)

Entertainment websites tend to keep providing more things to do, so you never run out. You can read them all day, like watching TV.

To help break the habit, It might be helpful to interrupt the temptation to read just one more thing, by making it cost a bit more. You don't want it to be effortless.

Hmm. Fair enough.

Unless you start spending more time online when you factor in the time spent waiting for page loads, plus potentially getting distracted and opening more tabs while waiting.

just throttle your connection ;)