我想提高我的成绩用英语怎么说

要说明提高成绩，常用表达有：

improve one's grades / marks
enhance one's performance
raise one's score
boost one's academic results

这些表达来源于日常英语交流和学术文献。

例句：

I want to improve my grades in English.
我想提高我的英语成绩。
She has been working hard to enhance her performance in math.
她一直在努力提高她的数学表现。
He has a plan to raise his score on the next exam.
他有一个计划提高他下次考试的分数。
The student was determined to boost his academic results this semester.
这个学生决心在这个学期提高他的学术成绩。