I am not a child any more英语短文,简单点的谁知道？ 重赏~~~~~~~~~

我不再是个孩子了。

我不再是一个孩子了

我不再是一个小孩了。

我不再是小孩了。

请参考：
I am a teenager now.My parents always take me as a child.They often ask me about my study and my life at school.I really want them to regard me as an adult.I can be independ and be more responsibilty.I can decide something by myself because I know what is right and what I shouldn't do.So I want to say "Thank you" to my parents,but I am not a child any more.
The day when I entered the middle school,I was faced with the fact that I was not a child any more.I have known how to study independently as well as how to deal with my own matters in my own way.However ,my parents still regard me as a child ,they like to prepare everything for me.As a middle school student,I must learn how to be independent.