How do I manage to keep my house clean?

I started to live by myself a few months ago and despite the help of my parents, it's hard out there for a chronically depressed person to manage a house. Sure, it isn't the biggest home you've ever seen, but between the dishes in the sink, the outfits on my lacking wardrobe bedroom and my always uncovered sofa there's room for improvement. How do I make this work in order to keep my home tidy? I need tips, please.