Hi
@MineagOoidal and welcome to the forum.
I am so very sorry to hear of your husbands diagnosis. My mum was diagnosed last year...very different circumstances due to relationship and the fact she is in her 70s so not as young as your poor husband.
However the feeling you describe of "drowning" I know very well...for 6 months last year I wondered if I would get my head above the water when the initial surge of grief came on. It seems natual you might be experiencing another surge of grief as your husbands job loss marks a big change in your journey and lives.
There will be lots of practical things for you to do, eg benefits, POA and the like, but these task lists can also be extremely overwhelming. Rome wasnt built in a day and it doesn't all need to be sorted right away. You can do one thing at a time.
I dont know if you work yourself and if that means your husband will be alone more at home in daytime, or that you will be home more together..either way, that would be a change and a lot for you to digest and process.
Do you have a social worker locally? I found ours extremwly helpful for navigating "the system" and the do lists. She has signpoated us to local services that have been very helpful for us as a family.
As for your feelings, be kind to yourself. I find that my own emotions can be stable amd calm for some time then somethjng will trigger a big emotional rollercoaster. Its an awful feeling and I dread every one of them but I think you might have to let yourself feel all the anger and frustration..its understandable why you would feel like that. This forum is a great place to let off steam if things get on top of you, or for practcial advice. Do keep posting xx