求一篇英语作文以changes in my life为题,写出人们生活的变化.

I Still could remember there is a big change in my life that makes me come to realise that how important for me to be confident.The story happened a year ago.At that time I was very bad at math and my math score was so dispointing that I became mad about myself.But my teacher told me that I could have done much better if I believed in myself.And out of my expection ,I got 88 in my math exam a month later.until then did I realise actually I had a gift for math and there is nothing that we canot do if we are confident enough.