You cannot will the depression away, only accept it. Delay any big decisions about work, marriage or money until you feel better. This will improve when you feel better. Waking through the night is very common. It's better to get out of bed until you feel sleepy again.
Mornings are usually terrible.
The day usually gets better towards evening. Get outside at least once a day for a walk by yourself. Light exercise of any kind can be very helpful to your recovery. if you have to do some work, do it in the afternoon or early evening. Your energy and interest are best at these times. Try and keep busy, but only with projects that involve your hands, not heavy thinking tasks.