It's difficult to teach academic/argumentative style essays (or really, any style) in one comment. That kind of thing would require a full course if you'd like to study it thoroughly. However, there are many guidelines that you can find online to get you on your way:
https://sydney.edu.au/students/writing.html
https://www.adelaide.edu.au/english-for-uni/tenses/
https://www.thoughtco.com/what-is-academic-writing-1689052
https://valenciacollege.edu/wp/cssc/documents/SampleArgumentOutline.pdf
I would advise to first try to find your line of argument - i.e. what is it that you ultimately want to say? Your introduction and conclusion should state this. In between, you can explore all the pros and cons; for example, by letting them play off each other. Make sure to guide your reader all the while. :)