Make sure all nearby offices know that you have available days during the week. Check liteblue at least once a week for district wide postings. On days when there's no work - do your very best to enjoy your day off. Have fun. If word gets around that you are having too much fun on your days off someone will make it their mission to bring you into work more often
On days you do work if it is stressful being around toxic co-workers - you can cut down on your office time by taking your DPS to the street. The office I started in as an RCA was a hellish place to work. Discrimination, gossip, bullying, sexual harassment, you name it. I'd rather be out in the street longer with DPS, listening to my music, than be in that building around those people. That helped me a lot.