It must be so hard. Thank you for the care you provide, Tem. I am sure you are doing amazing work.
I think the important thing is that you are able to release what goes on. It’s good that you already have a ritual to say goodbye when necessary.
It would probably be strange if you light a candle or incense in your workplace, but any symbolic gesture that you can do in private may help. I would do a grounding visualization, such as a protective light shining from above, while channeling it with a hand gesture
“As above, so below”
The more you can let that energy go through you without getting stuck, the better. Another idea would be to pull a Tarot card when you get home. Then dialogue with your deck about any lingering energies from the day.
Any grounding activities, including shadow work, journaling, or raising energy and releasing it through a creative act at the end of the day will help. For protection, carry a mojo bag with you to repel negative energies in situ.