OP, I have not rtft, only your posts. I am shocked at the responses you have had on here.
So you are at home with an SEN child who has only recently walked to school alone at 15, plus another child. Your husband is out 12 hours per day yet, despite this, does not financially provide for his family??! Only 40%?
WTF! You are carrying this man like a dead weight. What is the actual point of him?
The deal is, if he wants a SAHM so he can focus better in his business (without you know, daily life skills like housework, cooking, the fact you have 2 children) - then the least he does is financially provide fir that family.
He sounds like an indulged child. So his shop is open 1pm to 12am - so what? Loads of people go to bed at 1am and get up for 8am.
I literally don't know how you have coped for so long. I'm sorry you have encountered the anti-SAHM agents of MN too. Those accusing you of doing adult work should be ashamed.
Nevertheless - at the moment, you are facilitating him and he is not facilitating you. He does nothing for your family apart from the bins and 40% of your income. This is beyond ridiculous.