I don't agree with the people calling you lazy. you sound normal and bored. Plus you're underpaid, unless you had no experience or you're 16yo.

quit before you start hating them.

When they are babies this sort of thing is fine but when they begin to get older it sucks. I had two jobs like this taking care of a set of brothers. The worst part was they didn't live close to anything they did have a swing set and sand box in their back yard. I quit after a year.