求分解句子结构 如 主语 谓语动词 表语等

本句是个时间状语从句.
During the course是主句的时间状语,"I had come to ..." 里的I 是主句的主语,had come to realize 是主句的谓语,that以后所有都是从句部分的内容,作主句的宾语；从句又是一个时间状语从句：while my world was expanding and new potions were opening for me是从句中的时间状语,my father是从句中的主语,who was in his sixties是my father的后置定语,was seeing是从句的谓语,his world shrink and his options narrow是从句中的宾语.
O,买糕的,终于写完了.

During the course是时间状语 i 是主语 had come to realize是谓语 that while my world……narrow是宾语 （从句）
在宾语（从句）中 while……for me 是时间状语 my father 是主语 who was in his sixties 是修饰my father 的定于从句 was seeing就是宾语从句中的谓语...