我想有点改变翻译成英语怎么说

㈠ "我要改变/提升我自己"英语怎么说哦。谢谢。

I want to change/improve myself.

I want to make myself better.

㈡ 让我想一想 用英语怎么说let me think let me have a think都可以吗

通常用 let me see.在口语中绝对标准的表达，但是

我的想法是：
let me think about it = let me see
let me have a thinking about it= let me see

做“想”解时，think是动词，不能做宾语，要变成thinking