Dear Fran
Thank you for your letter, you can trust me this question is very simple: if I were you, I would do so, first of all, she should increase self-confidence more practice, then she should get more encouragement, classmates should help her to improve self-confidence. If she there doing, I believe she can get good grades.
亲爱的弗兰
谢谢你的来信,你可以相信我这问题很简单:如果我是你,我就会这么做,首先,她应该增加自信多练习,然后她就应该得到更多的鼓励,同学们应该帮助她提高自信。如果她在做什么,我都相信她能取得好成绩。