The first guideline for generating unique content is to get started. Experiment, make mistakes, test, and learn from the outcomes. If you have a lot of expertise in a subject, you have probably acquired intuition for recognizing patterns in that field. As a result, if you are an expert in a certain field, you may confidently rely on your intuition when making judgments that are directly connected to your field of knowledge.
No matter how unique your material is, certain notions common to your audience will not detract from it. Give your audience a hint that they may utilize so that they can comprehend and appreciate the uniqueness of your concept.