Im stuck in my depression, help?

I'm in a circle. I won't work but I'm depressed and it seems like me doing nothing makes it worse. Yet Im so depressed I can't seem to make myself do anything. I'm a writer btw, I write for a living. How do I get myself out of it, and replace it with habits that will actually stick, like knowing I have to brush my teeth everyday types of habits? I'm not happy, I feel like I don't care about anything with myself right now I just sit around watching tv and my SO is the opposite of me. I want to be independent. How do I start to work on that and feel better? I know in can get myself out of it. Any steps? Something that will help me feel happier and at the same time build better habits?