并且想要改变我英文怎么说

如果你想要改变你的英语能力，你可以说："I want to improve my Engpsh." 或者 "I want to get better at Engpsh."

这个表达是来自英语中常用的表达方式，表示想要提高自己的英语能力。

例句：

"I'm not very confident in my Engpsh skills, but I want to improve them." (我的英语能力不是很强，但我想要提高它们。)
"I'm taking an Engpsh course because I want to get better at speaking and writing in Engpsh." (我在上英语课，因为我想要提高我的英语口语和写作能力。)
"I've been practicing my Engpsh every day for the past month, and I can see a improvement in my abipty to communicate." (我过去一个月每天都在练习我的英语，我可以看到我的沟通能力有所提高。)