mydestiny的歌词中文意思是：我的命运

例句

3.

Ever since I was a child, I have known my destiny.  

从小时候起，我就知道自己的命运。

4.

What is he got to do with my destiny?  

他跟我的宿命有什么关系？

5.

It was never my destiny to stop you. I have set another on that path.  

阻止你从来不是我的命运，其他人会走这条路。