What are the best tips for essay writing?

[Phino]

I have to write a high school admission essay, any tips?
How do I make a perfect essay?

What is the essay about? How many words are you asked to write?

Clear, lucid prose and a very organised structure. make a list of bullet points you want to cover and use that as your essay plan. No slang, formal register and for heaven's sake check your grammar and spellings.