I know depression well. People in depression tend to not move, both figuratively and literally.
Being alone magnifies depression, makes it worse.
Depression is literally a distortion of one's perception of the world.....you don't see things like they really are.
Getting out of depression by yourself is really hard to do. Get some help from somewhere, from someone.
I was the caretaker for a mood disordered mother for basically my whole life and I'm prone to depression too, or I'm just simply unable to enjoy anything.
If you're the one who usually looks after other people, now is the time for someone to help you.
I know this very well.