Oh how my heart goes out to you.
You are such a strong woman to have endured all of this stress. It is completely understandable that you are feeling this overwhelmed.
I wish I had some advise to give you...just hang on.
Your doing a good job with the kids and I hope that your &%^%$^#husband gets his act together to be more a partner in this.
I wish you wellness.
((((HUGS))))
bizi