Sunlight and exercise helps me a lot, but when I am at my worse (heading in that direction now..) maintaining these good habits (also regularly eating, eating n

Sunlight and exercise helps me a lot, but when I am at my worse (heading in that direction now..) maintaining these good habits (also regularly eating, eating nutritious food, taking pride in my appearance/home) just evaporate. I live in a major metro area and can't think of food worth leaving the house for when I used to be so into trying new places and love ethnic cuisine. Guess it's depression?