Not quite the same however I have chronic fatigue caused by a medical complication along with other symptoms but by far the worst is the fatigue - I spend 75% of my day in bed and some days am unable to get up at all, the rest sat in a chair.
I'm a single parent and this has been our life for 5 years now.
Things that have helped us :
Applying for pip (you have to have been ill for a while but worth looking into and getting things in order) it's not means tested either, this helped pay for a cleaner and gardener, mobility scooter so I can do school runs on good days,
I got professional grants from my union for a wheelchair and electric bed,
Referral to OT chronic fatigue specialist,
Referral to physio,
Moving items to right hight so no bending /lifting using less energy,
Applying for a blue badge (again need to have been disabled a while for this),
Councils aids and adaptions service can assess and supply equipment to help dp be as independent as possible, you can often refer yourself,
Depending on your dc age the young carers group in your area may help, they've been great for my dc, I referred them myself after talking with school,
If school age let school know so they can put things in place for them my eldest is able to access a place he can use his phone to check on me in the day to stop him worrying he very rarely rings but knowing that's available to him helps he can then concentrate on his work.
I'm afraid friends do disappear in times of need - not sure how you can resolve this one but most of mine fizzled out and I'm not sure I'd want to be friends with them now I was always there for them but unfortunately not vice versa.
Routines help us and also lowering our expectations. My life in lock down was no different to before except the dc were at home rather than school and my medical care got cancelled. It takes time but it becomes normal and on a day to day basis gets easier to cope with - until something crops up and you have a melt down.
You probably could do with talking to your gp and also the carers association to get support.
To get anything you need to be prepared to fight your corner, be aware you will have some frustrating times, I'm currently on week 54 of waiting for an operation covid hasn't helped but even in normal times there are frustrating waits. When you get to the top of a waiting list doesn't mean it's your turn it means your moved to another waiting list!
St John's ambulance and other charities will loan wheelchairs if you want to try and get out of the house.
It's not easy, it's a roller-coaster ride to the extreme you'll both need to seek support (if you work you may be able to access support through them). You'll probably no longer stress the little issues in life and you will really appreciate those that do help. 💐