Maybe she has pnd? You haven't been together long as stated. I'm severely depressed to point I can't even get my head around bills, budgeting etc.
My son constantly screams unless I am moving so I'm never home. I'm out walking. So it's bit more controlled temp/weather I goto shopping centres. My house is a pig sty but you know what? Who the F cares.
If your child is being fed, isn't being abused then that's the main concern. The other issues you need to help fix weather your tired or not.