"before i can tell my life what i want to do with it,i must

在决定自已过什么样的生活之前,首先要听听来自内心的声音,了解自己本身是个什么样的人.
Befor starting your lifetime,you 'd better to think about that what kind of person you are ,what kind of person you want to be.what will make you happy,what can you do for your family,for community etc

楼上翻译的很好，很赞同。
再随意翻一个吧。
只有知道自己是谁，我才能追随自己的心。
Only when I know who I am can I know where I am heading.