HIDTL, it will all work out in the end, it really will.
You are going through a very hard time just now - how is the dx process going?
I have again been exactly where you are - but the rpoblems you are having are not all of your dh's making (obviously I don't know the exact dynamics of your relationship).
I felt it was all dh's fault - he could help more, he should help the way I want him to (without me telling him) he shold instinctively know how I do things, and not change routines with the girls as I will just have ot pick up the pieces later, etc, etc.
But, my frustration, resentment and dissatisfaction were all down to just being pissed off at my lot in life.
I did not ask for a disabled daughter.
I have one, and I love her dearly, but it does turn your life upside down. And dh's life is not as affected. A large part of his life has stayed exactly the same.
so he can breeze in and out, having lovely mornings with the girls, because he is not ground down by the daily shit I have to take. he can wake up, ook at things with fresh eyes, and get on with doing something, rather than still having the leftover lists form yesterday that just didn't get done to get through.
I have really struggled with dd1 at times. I have tried things with dd1 that go horribly wrong, andthen dh waltzes through, and she will do it perfectly.
I have actually now started embracing this.
For eg - toilet training. dd1 had major freak outs when I tried to introduce the concept. so I got dh to do it - she sat happily, and no freak out over the change in routine, which enabled my to tackle the rest (the inevitable messes/clearing up etc while she got used to it). But it took the heat out of the situation.
if you want to have a morning with your ds, then do it. ignore the cleaning/washing/hoovering. do it. your house won't fall down. I spent a large part of dd1's babyhood doing htis, because dd1 was more important. my house was a tip, but I had time to do what I wanted with dd1, with less stress all round.
at times, something's got to give, and I didn't want it to be me, and so it was the housework (no great loss in my book)
it doesn't all have to be done today, after all