I hope you're okay OP. I hope you made it through last night without hurting yourself again.
I just wanted to say I hear you and I'm there too and it's the absolute worst time of my life right now.
My DH is also fucking useless but he's going through his own stuff right now so we've hit pause on making the breakup decision.
I just do whatever I need to do to stop the crying because the crying makes me not cope. If that means the toddler doesn't sleep til midnight then so be it.
Last night I shut the bathroom door so hard I shattered a glass shelf. Thank god both kids were asleep and didn't wake. I just sobbed.
I hope you're getting some support and I want to reassure you that finally I seem to have found a medication that agrees with me and things are (very gradually) easing.
Unlike you, I did suffer with my first, it was worse and I didn't seek help and I made attempt on my own life. I got some patchy support after this but it was covid and there wasn't really any genuine help. Thank god my midwife was amazing this time and made sure I had all the support under the sun firmly in place before no.2 was born and it's still pretty dark right now.
My point that I'm getting to is that, I survived this once and I will again. There is light at the end of the very dark tunnel and you'll make it out eventually.
Please reach out for support in real life. Try to speak to your DH when the crisis has blown over and see if you can both calmly put in place a safety / support plan so you can both whether this storm.
Please message me if you feel it would be helpful.