Depression makes you feel like acting in a way that increases the depression. It can get very intense, and if it doesn't get better you may need to get some kind of professional treatment in order to break free of it.

There are some things that you can try. The things that work involve acting the opposite of you you feel. You don't feel like getting out of bed, so get out of bed. You don't feel like showering and getting dressed, so make a point of doing it anyway. You don't feel like going outside, or exercising, or talking to people, so those are the things you need to do.

Even if it is cold or cloudy or not nice weather outside, 20 minutes of exposure to sunlight (even through clouds) will make a difference if you do it every day (or you can use a light box if you have one). Going for a walk or other kinds of exercise works at least as well as taking an antidepressant.