I am not a caregiver any more, but I am almost completely isolated because of my age making walking very difficult, a family who does not include me except once or twice a year saying they love me, a girl in need of a home now and then, and one neighbor who leaves next month. My eyes will not let me drive. Getting groceries is a major problem.
In certain ways it is sort of nice. My time is spent exploring God as He is, and as He is working in the world. No person asks for my time. When I get to hear someone real speak, it is a real blessings to hear how someone else is thinking and living. I found people, some in other countries, who I can encourage. One is a man who has become homeless and has no one. It is even difficult for him to recharge his laptop so he can have that much communication. I think God can use us in any circumstance.
I should think being a caregiver both gives a way to give, and makes it harder to open yourself up to growth in the Lord in other ways, also. Do you have time left over from caregiving?