A Happy Thing

Today I joined the party which called italki. I feel so nervous. I just graduated from senior high school. In fact, I want to learn more languanges on during my holidays, but I am not confident. I hope that I can pick up my confidence and make lots of friends here. I’m a pretty chinese pretty girl. I wish to become more powerful.

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You wish to become more powerful in what respect? You can say "I wish to become more knowledgable." This way, it implies you want to learn more (languages, or anything else). Also, just remember to include a space after your common punctuation (comma, period) and capitilize the word "I." Good work!