[rwha]

I've been working from home for a couple years, and I had this same issue at first. For me, it helped to make a sort-of ritual of ending the work day.

I run a 'timer' script when I start working and run again after 8-9 hours (a simple bash script: `timer start|stop work`). Then I disconnect the VPN, close all open apps, turn off the display, and go do a chore (dishes, laundry, go for a walk). I also use a separate browser profile for work.

It was still difficult at first, but with the routine it got easier. Looking at the history of running the timer script, I saw my working hours gradually get to normal over about 8-10 weeks.