Ditto Roxy.
I remember last winter I barely survived but didn't want to give up while the prospect of physio etc might restore enough to carry on. This year I have more mobility, manageable pain, half the pony numbers and I can't see things the way I used to. So I reckon perhaps it's time to be realistic and find another way of living. Just two issues, one, having older ponies and a stallion that wouldn't be particularly saleable and might go on another 15 years, and 2 I don't know what else to do. And no I won't dump them or pts a healthy animal, I have been over that ground a lot.
So here I am facing another winter of twice daily animal rounds alone with weather and mud, arthritic fingers and feet making more problem than the rest of the usual joints, no income to speak of, fuel poverty, old car even older, house a state, a wall in the garage now cracked and falling out, lots more plans and ideas come to nothing..
I'm not sure why I'm here or where else I'd go. But if I were in your position, I'd take at least a year out, and then look at it all again when you have options rather than just hard slog without pleasure. Pain does that, takes the joy out and leaves work without end or reward in sight.