It's Not Just You It's All Moms

I would like to write this book (same as blog title). All moms think they are failures at least half the time. All moms get frustrated, tired, etc. I would like to write a book, but I doubt it would sell half as well as the one written by the Mormon guy about staying home to be the "mom". (I'll look it up and maybe even read it). So, do I just start typing in my Microsoft word program??? Maybe some planning and research would be good.