I’m struggling but no one listens 😔

I’m being induced on Saturday the 2nd of feb with my 3rd baby and my first little girl, I have two boys already one 5 and one 7. My 7 year old is out of control at school and at home this has been going on before I got pregnant but I thought it was a faze. My partner isn’t the boys father and this is his first child lately things have gotten bad with my 7 year old and I my partner will storm around and mumble under his breath that this house is becoming a joke I don’t remember the last time I felt loved, I feel like he regrets having a baby with me because it hasn’t been straight forward and it’s been stressful. I’m tying everything with my 7 year old but now I’m finding it hard not to lose my temper and lashing out and yelling 😔 I feel like a terrible mum I feel disgusted with myself and feel like my kids would be better off I find myself apologising to my bump for bringing her into this family and having me as a mother. This is meant to be the most exciting time counting down the days to meet her but I’m dreading bringing her home and what the next few months are going to involve 😔😭