Let me break this down in steps
Step one: Decide on what you're going to write about.
Step two: Read your some trusted sources that are related to the topic.
Step three: Write a good and strong thesis that makes viewers interested
Step four: Make a good draft outline.
Step five: Use your sources to the best of your ability.
Step six: Make sure the essay meets the requirements that are expected of you.
Step seven: Relax :)
Hope this helped :)