This idea will strike some as so simplistic as to be insulting, but lend an ear. Often people who are badly depressed are doing none of the things they love. They have too little energy to get started, or they say to themselves, "What's the point?" Or they may simply have forgotten activities they used to do.
An element of behavioral treatment for depression is to place more occasions for pleasure into one's life. We are indebted to Peter Lewinsohn at the University of Oregon for this approach. You use a simple checklist of things you do that are sometimes enjoyable to some people. Not everyone feels each activity is enjoyable, so you select your own list. For instance, a hot shower is enjoyable to some and torture to others.
Once you have generated a list of things you enjoy, you can set a very simple goal: "Today I will do three things on my 'enjoyable' list."
This does several things for a person. First, you get activated to actually DO something. Second, even if you enjoy the activity only a little, that's better than not at all. Third, it gives the ownership of the process and the results to you, and if you find you are being helped, you can have a sense of success and achievement.
Try this approach if you are having a rough time. The link goes to a list of events you could check off. It seemed awfully long to me. When I used to offer this to people in a support group for depression, I used an abridged form.
http://thecarenavigator.com/wp-content/uploads/2016-04-Pleasant-Events-Schedule-Person-Centered-Care.pdf
_________________
A finger in every pie.