I am in a very similar family and work situation.
I did the two initial doses of paste, and the two weeks after, just to try to fight the Shed from my vaxxed family and coworkers. I keep the paste for the day I experience symptoms. I have enough on hand for beloved family too, but I doubt they will deign to use it.
I now take the supplements recommended here, use Xlear 2x a day, lots of hand washing, try never to touch my face unless my hands are freshly washed, eat right, and try not to worry. We are allowed to remove our masks when outdoors or when eating at work, so I nurse my coffee and snacks at my desk to keep it off as much as possible. I sanitize my desk regularly.I keep hand sanitizer in the car and use it when leaving public venues.
I am fine; not a hint of symptoms despite an outbreak two rooms away from ours in same building.
Your mileage may vary.
Good ideas. Thank you and stay safe!