You may be interested in looking up Wiltshire Farm Foods - they have a menu and you can choose as few or as many meals as you like which are home cooked then delivered frozen to your home. They are reasonably priced considering that they are home cooked with good quality ingredients. You could have a "proper" meal alternate days and something on toast or an omelette on other days.
If your DH was your carer perhaps you could get another carer until he is better? Firstly to help you but secondly, because if it is seen that you can not only manage without one but also look after DH, you could possibly lose the carer's allowance.
I feel like I lack basic general knowledge





You have to laugh or else you cry and it makes you just wonder who thinks up these wonderful schemes. And yes, I do appreciate that the intentions are good!