请修改下面的短文。短文中共有10处语言错误，每句中最多有两处.每处语言错误仅涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号()，并在其下面写出该加的词。删除：把多余的词用(＼)划掉。修改：在错的词下画一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及其修改均仅限一词。 2. 只允许修改10处，多者（从第11处起）不计分。
My name is Michelle Kwan. When I was five year old, I began skating. I skate several hours a day every day of the week. When I was 13, I was performed at my first National Championships. But it was a disappointed performance, made me very upset. I decided to work even hard. The next year, I won the second place. After that, I went on to winning a silver medal at the 1998 Olympics and my world championships. I still practice every day. How? Because I know it takes great effort to reach top and stay there. If you want to achieve something great, work hard enough and you will make them.