What can I do when I return to the Three Kingdoms as a modern man?

If I go to the Three Kingdoms, I will help Dong Zhuo and subdue Cao Cao (so that I can control Xiliang fighters, butch riders, sudden cavalry, Qingzhou soldiers and trap camps), then kill Yuan Shao, destroy Liu Bei and surrender to Sun Ce Ma Chao. Doves kill Sun Quan. After the reunification of the Three Kingdoms, Dong Zhuo was asked to kill Lu Bu. Then Dong Zhuo is estimated to be almost old. Finally, help Cao Cao sit on the throne. Be a Wan Huhou or something. There are many wives and children rolling around. Nothing to do, just make a little invention or something.