From the formal rules of writing an essay, you can name only one thing – the presence of a title.
The internal structure of the essay can be arbitrary. Since this is a small form of written work, a mandatory repetition of conclusions at the end is not required; they can be included in the main text or in the heading.
The argument may precede the formulation of the problem. The formulation of the problem may coincide with the final conclusion.
Unlike the essay, which is addressed to any reader, therefore it begins with “I want to talk about …” and ends with “I came to the following conclusions …”, an essay is a reply addressed to a prepared reader (listener). That is a person who already has a general idea of what will be discussed. This allows the author of the essay to focus on the disclosure of the new and not clutter the presentation of official details.
Do not think that you can restrict only spelling. Re-read your essay and make sure that there are no ambiguous expressions, unsuccessful turns, etc. There are examples that you should not “take into account”:
“I am proud to be able to resist the use of drugs, alcohol, tobacco.”
“Working in your company (organization), located in a wonderful place where there is a lot of architecture in the Gothic style, will be an exciting challenge for me.”
Tedious prefaces. Not enough details.
Too often, an interesting essay loses in what constitutes an enumeration of statements without illustration by examples. The usual essays are typical clichés: the importance of hard work and perseverance, learning from mistakes, etc.
Essays are limited to a certain number of words, so you need to intelligently manage this volume. Sometimes this means giving up some ideas or details, especially if they have already been mentioned somewhere or are not directly relevant to the case. Such things only distract the attention of the reader (listener) and overshadow the main topic of the essay.