I wish there was something practical that I can do. All I can say is that it is 'all in your head' because depression is a chemical imbalance in the brain. There is no 'cheering up', because how do you buck that? But does that mean you're insane? Hell no! You know right from wrong and that's the most important thing. As for employment, what would these people fire Abraham Lincoln? Because he was depressive too.
Ask the employment office that and see what they say. Now get your ass out of bed, wash yourself off and go take a gods damned walk! Not 'later', not tomorrow! Right fucking now! Move it!