I would break it down into manageable parts . I start with dishes then clean kitchen that way the most important task is accomplished in my opinion. Then I take out trash and recycling, then the dining room one room at a time usually. Other times I start laundry and look for easy tasks first throughout the house . If the whole house is a disaster I’d do maybe one room a day etc staying busy for just 1-2 hours a Day also could put a huge dent in it . If you saw all the food you had to eat in a lifetime you’d give up but looking at just one meal 3 meals a day helps so much.