Consider the steps for writing an essay:
Step 1: read the assignment thoroughly and decide whether you agree or disagree
Step 2: think about who you are writing for, should you write formal of informal?
Step 3: take 5 - 10 minutes to plan and organize your essay, make an outline of what you are going to mention in the introduction, what your arguments are going to be, and what you will say in the conclusion
Step 4: think of appropriate vocabulary you could use in your essay
Step 5: write a draft version, then check the amount of words you've used and re-read your essay
Step 6: think of an appropriate title for your essay
Step 7: write your second draft