I really found this article worthwhile: How to Clean Your House When You’re Depressed
It’s worthwhile reading even if you are not depressed. There can be times when it is too hard to clean your place. Unfortunately, a messy place may lead to more sadness and stress. Applying the lessons in that article can help alleviate that.
Now your house may not be messy, but you may be suffering from being down and not able to do other chores. Again, try and apply the lessons in that article. It may help you make progress, and clear signs of progress can often help.
Good luck. Go easy on yourself.