I think many of us had hopes for our children to be independent - and to be able to provide fpr their own needs for themselves and the children they brought into this world.
Some of us looked forward to having empty nests! and were less than thrilled to have them filled again.
Sounds like you are 'making do' as well as you can.
I salute all those grandparents that have had to contribute to or take over the raising of their grandchildren.