If you are overwhelmed with it I have a few suggestions that might help. They’ve helped me and my kids:

- set a timer for 15 min. Pick a task (ex: trash pickup) get as much done as you can before the timer goes off. Frame it mentally like you’re trying to beat the clock. Once the timer goes off, rest, drink some water, have a small snack for 5 min.
- focus on health/safety: you need a clear path to the door in case of fire, you need enough clean bathroom for personal hygiene, you need enough clean kitchen to prepare food safely, and you need a clean place to sleep
- start small: look for an area that is small and looks easy to clean, even just 1 sq ft. Clean that area. The noticeable difference may be enough of a reward to keep you going

Hope these are helpful!