Please translate following sentence into Chinese!Thank you!My only fear is that because I will be representing my government,I will have to be proper all the time and will lose myself…

这句话是错误的。I will have to be proper all the time and will lose myself… 应该改为I will have to be proper all the time, otherwise I will lose myself… 或者 I will have to be proper all the time or I will lose myself…
因为have to be proper 和 迷失自我没有因果关系，应该用 otherwise 或or （否则）。

我要代表的是我的*，所以我必须时刻保持举止得体，从而迷失自己——我顾虑的正是这个。

我唯一的担心是我将代表我的*,所以我必须时时言行得体,恐怕那样的话会丢失真实的我.
希望对你有帮助

My only fear is that because I will be representing my government, I will have to be proper all the time and will lose myself
我唯一担心的是由于我将要代表我的*,我会总是保持合适的状态,并且(暂时)失去自我.