Having them at home and dealing with this is really hard. You never get a break.
I get that you want to give your M everything you have. And yes, one person can change the dance. I have to say in retrospect though, the biggest obstacle I had (with regards to anger) was that not only didn't my H go to the mat for our M (for me, for our D's) he didn't even enter the gym. Find constructive ways to deal with the anger as it comes up.
Next week, when your up and about, sounds like you have a GAL plan, make sure you get to gettin'.