我的男主角，我做主。用英文怎么说？

My men protagonist， I came to master

The leading role of my male, I make decision

如果要书面化一点的，可以说：
I am the male protagonist, and I shall take charge of things.

My actor, I takes responsibility
给你个地址，一般短语度可以直接翻译成英文。http://www.fanyi7.cn/html/default.html

I am the male protagonist, and I shall take charge of things