There is no secret that you will not be able to write a good insightful research paper if you are not interested in the subject overall and in the topic in particular. If on the other hand the topic is linked to the field of your interest, you may consider yourself lucky. It would be easier to explore the theme and write about it. You may even find some additional resources on your computer or I cloud service for the topic, which excites you. If you enjoy science, you are sure to talk non-stop about it. The same goes for writing.
The body of your essay will revolve around the ideas that you judge to be most important. Go through your research and annotations to determine what points are the most pivotal in your argument or presentation of information. What ideas can you write whole paragraphs about? Which ideas to you have plenty of firm facts and research to back with evidence? Write your main points down on paper, and then organize the related research under each.
An easy way to develop your thesis is to make it into a question that your essay will answer. What is the primary question or hypothesis that you are going to go about proving in your paper? For example, your thesis question might be “how does cultural acceptance change the success of treatment for mental illness?” This can then determine what your thesis is - whatever your answer to the question is, is your thesis statement.
Although it is tempting to simply read over your essay and use the spell-check tool, editing your paper should be a bit more in-depth. Have at least one, but preferably two or more, person/people look over your essay. Have them edit for basic grammatical and spelling errors as well as the persuasiveness of your essay and the flow and form of your paper.