Bring me down

Just trying to get through the inner battle in my head  in regards to depression with my job. On one hand things are still bad at work and  yet those are the things I have no control over. I don't know how to improve my depression surrounding work.   In the past I let my jobs become so much part of who I was.. I haven't done that with this job. Im so much more then just a medical coder...so if I lose it ..it won't be like loosing a piece of myself.