Dear Li Wen,
Thank you for your letter. I'm glad to hear you like English. But you said you didn't know how to learn it well.
First, you should remember as many English words as you can.
second ,you must listen to the teacher carefully in class.
Third, what about learning to sing English songs, reading English books or watching English movies ?
Fourth, don't fear to be laughed at. Try to speak English more.
Nothing is impossible to a willing heart. If you work hard, you will find a good way to learn English will.
Yours,
Linda