I need to separate work from home and home from work. My home is filled with distractions and the first couple of months of the pandemic were horrible becuase

I need to separate work from home and home from work. My home is filled with distractions and the first couple of months of the pandemic were horrible becuase I couldn't get anything done. I started going back in to work in the summer (2-3 minute commute depending on the single traffic light along the route) and my productivity went back to normal. It was actually better than normal because work was mostly empty, so I had a big office building designed for 600 workers mostly to myself. Now, unfortunately starting today we are all back in the office, so I'm having the same transition issues as all the WFH people, but because my nice empty office building is now filled with people.