I'm glad to hear that you are getting help from other family. Being a caregiver, while being very rewarding, can also be very difficult and tiring.
I understand how difficult it can be to get to church at times when you are a care giver. There are times that I have trouble getting there due to my own health. The small church I attend has a wonderful IT (my son) that has set up a great video system and tied it into the internet so that the services can be viewed at home. While it doesn't give much for fellowship time at least it helps with some wonderful uplifting messages. If you are unable to watch at least you can listen to it. If you want to try it you can see it here:
http://www.calvarybaptistcanton.com/livestream.php I am sure that there are other churches that do the same.