<human>: Wall of text, sorry...

I'm 20 years old, currently living with my grandmother as I have for basically my entire life.  When I was around 12, my grandparents legally adopted me and my two cousins (one same age, other is recently 13).  My grandfather passed away about 3 years ago, and since then, my grandmother's mental health has just been sharply declining.  Right now, the living conditions of the house are pretty unbearable.  The air is basically all cigarette smoke from my grandmother's chain-smoking (people ask me all the time if I smoke because I smell like an ash tray), there's mold in the bathroom (and probably in the roof.. attic? after having some kind of infestation) that she refuses to do anything about, there's hardly ever any food in the house, the place is NEVER cleaned (I try, but it's always trashed in a matter of hours), and now there's an unbearable flea infestation that she simply ignores - and the dogs are in awful shape, too.  I don't make enough money to live on my own.  I just recently got a raise up to $9.50 an hour, and I work about 32 hours a week.  Between insurance and my actual car note, I have $355 a month to pay for my car and $50 for my phone.  I'm in the process of looking for a second job so that I can try to support myself, but so far, having a job already is an issue for most employers I've talked to.

Age of majority in my state is 21, which I will be in November.  However, another 5 months of dealing with fleas and the constant fear of an asthma attack from the mold and cigarettes is unbearable.  Since I was legally adopted and there is a 13-year-old living in the house (again, also adopted), should I contact DHS or something?  I don't really have anyone I could become roommates with, as pretty much all of my friends are moving out of state or several hours away from here to pursue other jobs or continuing their education.

Summarize the given text in a few sentences.
<bot>: Legally adopted, under age of majority, mold, fleas, cigarettes, asthma, no friends, no idea how to get into a better situation.