Hello, writing an essay does not involve following strict rules. Formally, all you need to do is write a title. The structure of the work, as a rule, is arbitrary. Since this is a written work of a small form, it is not required to repeat the conclusions on the topic at the end of the work, they can be included in the main part or title. The author can give arguments, prove the correctness of his own point of view before formulating the problem, which often coincides with the final conclusions. You need to be able to compare and contrast essay topics so that your essay is simple and understandable for the reader.