You always send such upbeat posts so this one really shows you are at the end of your tether.
Whilst you are feeling this way harness the adrenalin and bite the bullet to suggest to dad that due to other calls on your time you'll organise a weekly online shop for dad-to be delivered at the same time each week so he'll need to be in -and you can take him for any top-ups required later that week and maybe have a coffee with him whilst out so its less of a chore-unless that in itself would make it a chore!
I do a 'big shop' on line once aa month and have found that repeat orders take no time at all to submit and the same order can be sent weekly with few tweaks here and there if required. ( I do it via the app on my phone- great time saver).
Good Luck with whatever you decide to do and I agree with all the others up thread- if you become ill and worn out you wont be able to help anyone so they need to be a bit more considerate of your needs too.
ps This suggestion of course has a flaw in that if you shop at LIDL or ALDI ( btw love the middle of LIDL am addicted to it!) they don't do online...in which case ignore my suggestion! 
By special request, let’s discuss our favourite Classic Music and why?




