Rose, I have been reading with great interest. I am not religious, either. And yet I have found that certain prayers are extremely effective. If you ever care to read my earlier posts, you may see that I was being challenged in a big way by certain "things." I found the St. Michael's prayer and used it daily; still do. I am no longer bothered by whatever that was; in fact it signaled my victory by angrily knocking twice on a door that no one could possibly reach without a ladder. As if to say, OK! You win. It never came back.
The powerful angels and other entities out there will help anyone who asks, religious or not. I would also suggest you carry or wear something on your person that has a protective meaning to you. As Selectric said, your intent is what matters, and not what you use. I think that whatever is going on in your workplace, you must shield and protect yourself. Don't be hesitant in asking for help from "the big guys."