First notebook entry: Introducing myself

Hello (N.B.: this is an English, not a German, essay),_my name is Anna,_and my Chinese name is Zheng Xinxin._I am 17 years old._I'm a high school students of 17 years old，i'm a girl (since: Anna already indicates that it is a name for female gender)._I want to learn english ,_because I think that it is so important.but However, I don't (in formal writing: do not) know how to learn English more effectively. _My Korean friend told me about this website,_so I want to try it ._Temporarily so That is it for now.

N.B.  Be sure to leave a space AFTER each punctuation mark, NOT BEFORE. 

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Good day. / 祝  是日安好。