Not sure what to do

My SO and I are ending our relationship of over 6 years.

We have a two year old son and I’m 7.5 months pregnant with our second.

My son doesn’t listen to me.

My SO wants nothing to do with me.

He puts me down every day and makes me cry and stay in bed.

I’m failing as a mother.

He’s constantly being mean and tearing me apart.

My son wants nothing to do with me.

I’m just literally a waste of space as he says.

I can’t ever stop crying or wondering why I’m even here anymore.

I have no purpose and do nothing like he says every day.

My depression has never been this bad and I’ve been medicated for like 7-8 years.

I just feel like I’m going to collapse.