The main body includes the biggest amount of information. It is 80-90% of the whole text. There are no strict requirements, but you should not forget to use a logical sequence and correct wording. You can use the classic five-paragraph structure for your autobiographical essay if your ideas fit it. Anyway, you have to divide your writing into separated paragraphs to increase the readability of your essay. You should also create a logical connection between paragraphs. In this manner, readers will easily follow your thoughts.
Do you remember any other challenges you had to overcome that relate to each main point in the story? Did you move? Were you ill? Did anyone close to you die? Did any of these people or events affect the choices you made during that stage of your life? Do you remember any amusing or embarrassing incidents related to this success or failure? What high points and low points do you recall? Was a specific holiday or celebration memorable? A specific meal or car ride?