@BonyPony
I understand that the inheritance looks like a great way out right now.
But the fact is in 11 years time when it has run out what are you going to do then? Same issue but no inheritance to fall back on.
I would look to see if moving is an option and have a smaller mortgage ( using the equity to foot solicitors bill and stamp duty as presumably you poured all of equity from last house into this one )
look at reducing bills
Or / and you may have to look at getting more hours ... perhaps a dinner lady or a teaching assistant role? Or admin at the school or a school?
Or look at call centres where weekend work could be achieved to fit around husband.
A chore chart for kids and new expectations of assistance from husband would be needed to help you adjust.
Children can take turns to run hoover around. / pick up messes
Kids to make own beds as a rule and put dirty laundry in wash bin
You do dinner / husband tidys away.
Put a load of washing on each night and hang On a Dryer or if its a hot night as it’s summer and your due no rain the night before so you or one of the kids can get in after school.
Chuck bleach in toilets each night and clean kitchen / bathrooms and polish weekends only.
Abolish ironing where you can... shirts you have to but dry t shirts etc on hangers if you get the washing out as soon as it finishes and trust me the creases drop out. Just do uniform for kids.
Husband can iron his own stuff.
Or worse case pay someone to iron the kids stuff if your making enough.
But husband if he wants you to
Do more will need to do more to help.