This is a good website that shows how to write at the High School level:
How to Write an 8-Sentence Paragraph | Pop Culture Classroom
At the College level, the structure of an essay is similar, but more focused on creating 5 paragraphs:
An introduction that has for the last sentence the Thesis statement
3 separate paragraphs
A conclusion paragraph
The Thesis statement outlines what the 3 paragraphs will contain. Here's a concrete example -
In Texas we have good weather, wonderful food and amazing scenery.
The first paragraph is about the good weather, the second paragraph is about the wonderful food and the third paragraph is about the amazing scenery.
The conclusion sums up/reiterates (mentions again) the main points you wrote about.
Also important are transitions - Having the last sentence in a paragraph lead into the beginning of the next paragraph. For example: While the weather in Texas changes daily, the cuisine (food typical for the area) does not.
Outlining can help. Also useful is Googling information about your topic and IMPORTANT putting it into your own words, and or providing your perspective about it (what you think about the ideas you found.) DO NOT copy other people's work without permission and ALWAYS cite your sources (show where you read about a topic.)
I hope this is useful. Writing is like exercise, the more you can do the easier it is (because it helps your mind/thinking stay in shape.)
Cheers,
Laurette S.