Your ILP is a plan. It looked ahead to what you hoped to accomplish.
The self-assessment is a reflective paper -- it looks back on your accomplishments. According to the syllabus, "a final self-assessment essay will give students the opportunity to reflect on writing progress and to identify writing goals and challenges for the future."
Your draft should be about 5-6 pages. The final draft will be worth 10% of your grade.
Just like all submissions in this class, it should support a single main idea, expanded and developed by supporting ideas. Each paragraph in the paper should have its own topic sentence and supporting sentences. For each claim that you make, SHOW supporting evidence (in the form of direct quotations from your own papers, from comments I or your peers have made about your work, from handouts or textbook chapters, or from MyCompLab results).