How do I get out of my current funk or depressed mood?

With help. Depression can be successfully treated with psychotherapy and/or meds. See a good therapist as soon as possible, because depression tends to get worse and decrease your ability to work it out yourself. You would never ask this question about pneumonia or a broken leg, would you? Only difference is depression is 'above the neck.'.
Depression. Response is better, as well as prognosis, if medications are used concurrently with psychotherapy. Talk to your psychiatrist.