<human>: Can you provide a brief overview of the text?

Hello
I am a 30 female that just moved in with a 30ish year old female, her 14 son and her 35 year old boyfriend.
When I saw the house, she said it was never this dirty and that it's as worse as it get.
I moved in 5 days later...and it looked the same...
My room was not vacuumed, the bed sheets were covered in hair (had to wash them that night), the furniture has sticky stuff on it, the mattress has gross stains and the downstairs bathroom (which was given to me) is full of their hair products, towels and hair.
Today is my 3rd day here. I have asked for cleaning supplies 3 times. I have asked her to move her bras, underwear and filing cabinet out of my room, and she just says she'll do it later today...but it's been 2 days already (plus 5 day she had to clean before I moved in)
There is also no space for my food in the main fridge and the 2nd fridge is filthy.
She seems like the type of girl who can go into bitch status really fast. I am a pretty blunt, assertive person, and I don't want to make this worse than it is.
Rent is $600. I gave her $400. My boyfriend said to tell her I will give her the other $200 once the bathroom and my room is clean. (I also vacuumed yetserday).
HELP!!! I really don't want to start arguing with my roommate the first week! She is an adult and should know better than to hand over a dirty house.

I got her bedding out of the closet and off the bed and put mine on.  I'm going to venture to take a shower.  i spoke with many friends, and I feel my only choice is to stay here for 30 days and find another place in the meantime.  So, when and how do I tell her?
<bot>: Moved into a dirty apartment and don't want to piss off my new roommate who seems a little stressed/aggressive.