Oh sweetheart sounds like you are having an absolutely terrible day . This mum business is exhausting and so incredibly trying!!! Some days these kids just do our heads in. I'm so sorry that i can't help you out by taking the kids for you. When is DH home??? Sending you heaps and heaps of support and hugs. Can you put the kids to bed for a sleep so you can grab 10 mins to yourself?
I'm so sorry you're doing it so tough today.