Hi LALotus, do you think a career change might be a good idea afterall considering the way you're feeling?? You do need to put your well-being first. But that doesn't necessarily mean you'd have to step away from the mental health field..........a different setting maybe???
Depending on what you're doing now you might want to consider work in psychiatric hospitals, secure units, being an out reach worker, working with adolescents with mental health issues, working in a field that focuses on particular health issues, working with the homeless (where there can be mental health issues with a percentage).............quite a few different options if you think any of them might "reignite that spark"???
Otherwise any other opportunities you have where you're working now?? Or any more support you can get from your employers or colleagues??? Maybe a break e.g. extended holiday to come up with a kind of plan that may help you "recharge your batteries" (that's if we're not talking complete burnout!)??
And maybe you could introduce some new/different things in your life outside of the workplace to relieve stress, tension, to break that focus from work quite as much, help you to feel more "refreshed" when you step into the workplace??
And you know if you're carrying with you more of the stressful, distressing, "challenging"........times maybe you could try to redress that balance a little in your mind e.g. put in some/plenty of time to really reflect on some of the "success" stories, the real difference you've helped make in some people's lives...........it can be easy to let some of those "slip your memory" when the other things take over, or easy not to give them the significance they really deserve.
And sometimes talking about some of the things you're going through can really help, so I don't know whether a counselor or T might help, or us (!!!) if you want to keep on talking.............
So just some thoughts, depending on how bad this is feeling to you, right now............

Alison