Yes yes please go and apply for an oversea maid immediately. Wait 2 months and fire your current maid! If you won't leave your 大女 with her now, how can you trust your newborn with her? If you are ftm your problem is smaller - hopefully you will hire a stupid (but honest) maid next time. Just use her as a pair of hands to clean, cook and carry heavy things (and you take care of the children by yourself). You can also arrange your 大女 to go to N1 school if you need extra babysitting and you cannot get popo / mama to help you to take her to playgroup. Make sure you lock up your valuables at home!