Struggling with Classroom Management

I’m really struggling with classroom management in my kindergarten room. This is my first year in an inner-city school. I know it’s different than suburbs, but my classroom management skills and strategies haven’t been working and I don’t know what to do. I have a lot of behaviors. Defiance, not listening, consistent chatter. My co-teacher and I have incentives and consequences in place but they don’t seem to work. We try speaking sternly, kindly, nothing works. We take away recess, award individual and table points, message parents, nothing. Kids are consistently talking out of turn even though we remind them to raise their hands, always running up to me to ask questions, etc. Nothing seems to get through to them. When I do eventually get their attention, any time I take a breath or pause they start talking again. My call and responses and doorbell don’t work. They all just seem to not care. They’re always touching each other, things on my desk and my co-teachers desk. I ask them to sit at the rug or their chair and they don’t move. I turn it into a command or repeat it sternly and they don’t move. Nothing seems to work.

Sorry, this seemed to turn into a rant but if you have any tips please let me know. I’m getting frustrated and burnt out and we’ve only been in school for a month.