DEPRESSION CAN BE DISABLING.
It can interfere with your energy level. It can make you more irritable, tearful and hopeless. It can make it hard to concentrate. It can prevent you from having an interest in doing anything—including leaving your house.
While there may be days where your depression is better and you do not feel so hopeless, in order to work a full-time job you have to be able to feel good enough to work for 8 hours per day and 5 days per week.
If your depression is preventing you from working, you may be eligible for disability benefits through Social Security.