Writing an argumentative essay requires extensive research, a clear thesis, and a well-structured outline. The outline must include an introduction, body paragraphs with evidence supporting the thesis, and a conclusion. It is also important to anticipate and address counterarguments by presenting well-reasoned responses. Finally, the essay must be written with compelling sentences, persuasive language, and proper grammar to effectively communicate the argument. Mastering these skills leads to a persuasive argumentative essay, though the process can be challenging.