help 🇦🇺

I am a first time mum I am a young mum in my twenties and my partner is in his late twenties I am from adl and I moved to sydney to marry him and he is originally from sydney but isn’t an australian citizen and is was on a student study visa 500. we recently gave birth this year early november and had our baby. we are from pakistan both born in pakistan me mum I’m a citizen he’s not a resident of Australia yet no PR. My partner does have some bad habits like smoking, vaping, and also some alcohol. I have had a rough childhood with family issues. I had ups and downs during pregnancy and after pregnancy with my mental health feeling anxious stressed before pregnancy I was doing well and managing stuff myself and went well. my landlord says to me I’m mental but can’t confirm why she calls me mental when I’m just trying my best with baby as I’m a new mum. my partner thinks I’m not mental but sometimes he says I am very moody since I’m a young mum. I just do things which make me happy. the department of child protection here in NSW Australia had concerns of my baby and they haven’t been open about the things we are doing wrong when we are doing stuff like normal parents and keep saying they have concerns about baby and our relationship. Our baby is healthy as far as the baby nurse visits and I’m her mother I’m doing fine as well coping with postpartum but healing pretty well. I am happy to get counselling if things go downhill but as of now being with baby and partner makes me comfortable. The department keeps saying they will take baby away from me and my partner cause hey have “concerns” but they’re not open about it I also feel the worker is racist towards us and my partner here in sydney. Like I said I am not from Sydney I didn’t know much bout nsw of how strict it is with its state laws , I am worried they keep saying they will take the baby away and give it to foster care/ adoption. I really don’t know what I’m doing wrong. The department isn’t explaining much to me as they are very broad and vague. they keep saying that because of my mental health they will take the baby away from us and partner is violent when he wasn’t violent they keep making false things up and saying there’s concerns but not explaining the concerns. I did struggle in high school years can they take baby away from the mother and give it to another family. But aren’t explaining much. and the worker here in nsw is talking on top of me and saying no no I am your daughters case worker. And talking on top of me. I don’t know what to do in this situation. if anyone can help me out.