Wow I feel like you.
I work at an adult drug and alcohol/criminality facility. Most of the people come from jail, and have other convictions along with drugs. I graduated, and worked at a gas station first. Panic attack central I called that place. Then I left, and finally got a job with my degree (sort of). I basically monitor the people at the facility, among other annoying tasks. I avoided working with adolescents because of what you said about them. I sort of knew that's how it would be. Although, I might be able to deal with it better now, that I've been around it for almost a year now.
Anyway, I had ups and downs with my job. I liked it at first for awhile, although I had trouble going from nerves. Then I sort of thought it was okay. Then I started to get really sick of it. Now, the time has passed to get out of there, and I'm thinking everyday on what to do to leave. Although the clients are annoying, manipulative, and big babies mostly, they have been mostly respectful towards me (at least to my face), so I haven't had a HUGE problem with them. However, there are days where I need to deal with their families on the phone, or when they visit, and they are BEYOND annoying, and I want to start drop kicking people.
My biggest problem is with my co-workers. I didn't talk to them for like, the first five months of working there. I was to afraid to talk to people. Some of them told me I'd never make it there to my face. I've been there a year now, so they were wrong, but still. They have gotten on my nerves since I began. A lot of coworkers come and go there, because they are messed up themselves. They have serious narcissistic qualities most of them, and I can't even stand to be around them anymore. I've been thinking of even trying to go to night shift, just to get away from my shift's coworkers. I've been applying to other jobs, but nothing has happened yet. Like you, I hate going in, and I think about it before going.
The place sucks. Someone just quit there, and is going to complain to the administration about it. I'm hoping they shut the place down to be honest, but I doubt it will happen. I want the clients to get help, but I feel like they aren't getting a lot of good help there. Not only that but the place is just unhealthy, mentally and physically. They have had bed bug problems since I started. My coworkers are demeaning, rude, annoying, lazy, self-absorbed a-holes. Most of them, anyway.
My schedule is all over the place. I never know what my schedule is going to look like from one month to the next. I don't have two days off in a row till the end of this month. I never have weekends off. The place sucks. Sometimes I'm sorry I ever went to school for counseling, since it doesn't seem I'm ever going to be one.