Living with my parents.

Samantha
Hey everyone. 
So here's the deal. 
I've been pregnant quite awhile. 
To be honest I was happy but at the same time I was kinda bummed. I'm 23 years old I have no job at the moment working my butt off trying to get one. Boyfriend has a job we've been trying to save but it hard with only one I come right now. We currently live with my parents due to either of us not having a place to go when the lease was up and trust that we were happy to leave but now we live here at my parents and my sister and her boyfriend. 
Lately I've been so down because I'm home most of the time but constantly looking for a job. No luck yet. (I go out twice a week and check up on my applications and turn my resumes in.) and we live in my room which is getting pretty cluttered. And the other day I started crying because I thought I'd never be in this situation. 
Not only does it suck, (and I'm grateful my parents let us live together) because my sister doesn't pick up after herself or her boyfriend they smoke weed and wax or whatever it's called and I smell it. It seeps out into the hallway and I'm constantly worried about my babies health because they don't wanna go outside and be respectful. And my parents don't say anything. 
I'm afraid I'm about to lose it any moment. Like have the biggest flip out of my life. I need advice ( as much as I dislike it) about any programs that could help me get cash so we can move out. Because I'm not letting my baby be brought into this environment.