I know what it's like to be overwhelmed by the whole house at once. In these moments (or hours or days), I just keep reminding myself to move forward. Keep moving forward. As long as I follow the Take It There Now strategy, the house will get better.
My newest book, Organizing for the Rest of Us: 100 Realistic Strategies to Keep Any House Under Control: https://www.aslobcomesclean.com/restofusbook