A couple years ago I was having difficulty working (couldn't get ADHD meds due to unspecified global calamity).

I decided that unproductivity was unacceptable and so I simply engineered out the failure modes.

1. If I skipped a day on my project, the chance of catastrophic derailment increased exponentially. So I decided I had to work on it every day. (But only for an hour, to make it easy.)

2. If I waited until later in the day to begin working, the chance that I would miss a day increased exponentially. So I decided I had to work as soon as I woke up.

3. If I connected to the internet while working, the chance that I got derailed increased exponentially. So I just turned off my router and phone the night before. (Good for sleep hygiene, I did it an hour before bed and found that I could actually concentrate on paper books again, with the infinite Satans removed from my life. What a concept.)

Obviously unplugging your router is going to piss off your housemates, so a good alternative is buying a Wifi repeater for $10 and putting your devices on that. (You can just put them in airplane mode, of course -- but I find the physical ritual of yanking the damn thing out of the wall has something special to it.)