I’m sorry you are going through so much at work. It does sound like you are depressed though. My coping mechanisms are: keep a routine, eat regularly and healthily, get outside if even for a little time, try not to isolate, try to engage in activities that bring you, or used to, bring you joy, exercise, and use distraction when unable to do anything else. I watch TV, surf the net and read if possible. Everyone is different so you will have a different list. Doing any of this will be tough when depressed but even trying one of them will help and perhaps lead you to do more. Perhaps if you can improve your depression work issues will be easier to manage. Hang in there.