I agree with the above, nyte dear. Handle it in little manageable pieces.
You can hang clothes out to dry now that it is no longer raining here in Oregon. You can barter to get the lawn mowed.
Have you considered--now that AH is not going to be living with you--inviting another single mom to share the rental house (and maybe she has a car).
Kids teeth....well just rinse and brush a lot until next year?
And AH: well, just be a little careful that the children don't equate time out with never coming back.....you know, just in case their little minds think they might be booted....you know what I mean. I'm sorry they are upset and things will settle down now that you have made a firm decision about your separation. (And it is ok to say "separation" to them, I think). The transition to a peaceful life in the future is worth every bit of chaos now, sweetie, so just keep your eyes on the prize.
In wartime, don't they call it triage.....taking care of the biggest worst wounds first?
I would say that is the car. Again, know any other single moms?
Wishing you a good night's sleep and peace in the morning, sweetie. I know you are praying and many here are praying for you as well, including me.
God bless you and your children.
Bluejay