求翻译：妈妈见我这么紧张便安慰我说：“不要紧张，就像平常练琴一样就行了，结果不重要，你平时的努力妈妈都看到了，你是妈妈心中的钢琴弹得可好了。是什么意思？

Mother see me so nervous they comfort me, saying: "don't be nervous, as it was usual practice, the result is not important, efforts of mother are you usually see, you are the mother played the piano, Catherine.