Gosh, I absolutely relate to this! I have the luxuy of a husband who cooks so at least I don't have to worry about that, AND I only have one small child, but still, finding time to THINK is the problem, as well as reading for ideas and focusing on my thoughts.
As I write, I am sat in the bathroom with my laptop, watching my 3-year-old as she plays in the bath, and occasionally murmuring, yes, the dinosaurs do need a shampoo, and please don't splash the floor, and don't drink the bath water!
This is further complicated by the fact that her mutterings are mainly in her dominant language Spanish, so then I respond in English but have to return my brain to return to writing in English.
Phew! And it's only 8pm :)
Best of luck, fellow momma!