How about changing a small bathroom on the east side of the balcony into Feng Shui?

First of all, changing the bathroom involves changing the water supply and drainage, which is a very troublesome thing. This will affect the normal use in the later period, unless you repair the house yourself. Thirdly, Feng Shui doesn't mean that there is a bathroom in that direction, but that there is a bad star in that position, and you can put the bathroom there. East is divination, representing the eldest son.