Write an outline with three to five major points you'd like to cover. These points could include specific things you learned during a process or could represent categories. For instance: improvements, challenges, strengths, weaknesses and new goals/interests.
Write an introduction that broadly introduces the overall topic. The introductory paragraph should consist of a few sentences and give the reader a hint of what you'll cover in the rest of the paper.
Write a short paragraph for each main point. In each paragraph, be as specific as possible about your experience and your review of the experience. Write in the first person, using "I" statements and relating the class, project or reading material to your own experiences and understanding.
Write a conclusion. Leave the reader with an ending paragraph that reiterates the importance of what you learned, not simply a verbatim account of the points in the body of your paper.
Provide in-text citations and a list of works cited if you use or specifically refer to any readings or materials.
Print and proofread your self-reflection. Read it aloud, and mark any sentences that need editing. This way, you can return to the computer and easily make the necessary edits to polish the final draft.