My mother (102) is ambulatory and quite healthy physically and mentally.She lives in an assisted living facility in Lauderhill. I try to visit and shop for her but I am quite ill and it is getting increasingly more difficult for me and I live about 25 miles away. To be honest, the way it looks is that she is going to outlive me even though I'm trying my best to stay alive to help her out. I pay all her bills, etc. and provide an aide to take her to the doctor if I'm unable to do so.
Another way would be to advertise in your local paper for someone to perform these tasks.
I am the youngest of 4 siblings that has been catering to my elderly parents for 25 years. It has taken it's toll and my physician is after me to get healthy or I will become a statistic. Sounds as though you need to take a step back and focus on your own health as well. Good wishes to you.