My family's feng shui is basically the same as yours. My family has just built a new house recently, but since the house was built, many unlucky things have happened at home, especially car accidents. I'm also trying to watch Feng Shui. I hope the answer can give you some advice, because I don't know much.
Besides, it's sad to say, something happened to my mother's family.
Your child's grades are not good, which is strictly disciplined, and it has nothing to do with Feng Shui! !