I kid. It still works, although I use rescuetime now and it's pretty useful seeing how much time you waste on certain things. Costs money though.
I almost stopped using the app due to the lack of an off button, after my boss asked for some data and I could not get it on time because the website was not on my whitelist.
Luckily, there is a way of turning it off. If you don't want to know it skip the rest of this comment, and otherwise here it is, in case someone needs it: the app uses the local time, so by changing your computer's time forward you can end the block earlier.
It should be possible (if slightly annoying) to disable restrictions, but it should only ever be temporarily disabled.
Copy & paste?
I severely limit what's on my phone - no social apps, for example, and it's enough of a pain that I don't browse the Internet on it much. So I've mostly solved that problem.
Works well. It cannot be turned off and you can set it for a specific amount of time. You choose the websites you would like to block.
Your phone is obviously a weak point, but it's a start.