When I'm depressed showers go out the window. It got so bad that I was showering once a week. This is because I always thought of it as a huge chore that would require lots of energy. I am an obese person and it makes it even harder, especially to dry off. But now I have positive generalizations about showering. I have a bright lamp I put in there to make it very light in there, which some reason I enjoy. I think about how nice and warm it will make me (I have trouble with being cold all the time) and for drying off, I air dry some of the way, so it's not a huge chore. I still sometimes go 3 days without showering, but it's a lot better than once a week. Try to think of something positive about showering.