I am 15 now,When will I become old?

I am 15 now,When will I become old? i wil I am rather tired ,wil youtake the wheel I am rather tired ,wil youtake the wheel I Am Falling Now Now ,I am alone I AM BUSY NOW? I am here now where am i now? i am up now when i am gone I am busy now还是I am busying now 翻译中文谢谢“If I am not for myself, who will be for me? If I am only for myself,what am I? If not now, when?”------Hillel I Am Falling Now 歌词 i am come in now I am eating supper now I am come back now. now I am all gone