I can't imagine feeding and caring for 8! You must be wonder woman! I had only one and she STILL gives me a hard time [but I love her dearly!]
I just have a higher-than-average tolerance for chaos.
Being a parent of any children is difficult, but I don't think that eight is all that much more difficult than two. You just have to accept that you're not in control of most of what goes on.
They do eat a lot, of course, but a casserole for ten isn't much more work than a casserole for four.