The conclusion of the essay is the last thing you will need to write yourself. Here you will need to put together the introduction, the conclusions of the main part and express from this the conclusion.
The volume of the work takes about 1 page. At the same time, you can not just copy the text from one chapter and transfer it to the conclusion. Try to paraphrase more and make your own conclusions. In this way, you will be able to write your own abstract.
The formatting of the abstract is the final stage. First of all you have to bring the whole text to the standards of GOST.