I have sympathy for OP.
I have only had two maids and three gardeners in the 13 years of living in HK. The maids and one gardner are still in my employ.
It hasn't been easy all of the time far from it but obviously I haven't had such a bad time as OP has had at start.
I think there is a fair bit of good information here. I thinks he OP is not experienced in these matters, fair enough some of us grew up with helpers others didn't.
Take part time, poach, network......you are right you can't teach a maid to cook you might as well be doing it yourself.