Activate my left hand

My piano lesson stopped by my weak left hand in the past.  What is my "left hand" other than that?
Those are: 邏輯數理智力,discipline,etc.
To train in these areas are late for me but one can not escape, therefore I should allot more time in catching up.

多元智能理論是由美國哈佛大學教育研究院的心理發展學家加德納在1983年提出。加德納從研究腦部受創傷的病人發覺到他們在學習能力上的差異，從而提出本理論。傳統上，學校一直只強調學生在邏輯─數學和語文(主要是讀和寫)兩方面的發展。但這並不是人類智能的全部。不同的人會有不同的智能組合，例如：建築師及雕塑家的空間感(空間智能)比較強、邉訂T和芭蕾舞踏員的體力
studied the words 愤发, realized that I must have 愤--congested desire, anger first, then I can release them afterwards. I had no passion in the past because I was in an empty state of mind, I may say it as the result of obliviousness, as a form of protection after unhappy events.