The third house is a cadent house.Its natural sign ruler is Gemini and its natural planetary ruler is Mercury.

（第三宫属于变动宫，守护星座是双子座，宫主星为水星。

I figured if I could get that T-square in Cadent houses instead, it would be weakened.But that would also weaken the Sun and I didn't want to risk health.What to do?

命盘上月亮落在巨（发疯、忧郁症）非常，想如果让t三角落在Cadent宫会好一些，但是这会使太阳力量减弱，也不想拿健康冒险，该怎么办？