It is important to properly cite work that is not your own. One reason is to give proper credit where credit is due where ideas and words are not your own. Another major reason is to guide your reader back to the article/video where you found your inspiration and from where your own unique thoughts were formulated.
There are two popular citation styles (APA and MLA) used by researchers and scholars. Choose one that is easiest for you to understand and stick with that style for your student career unless you are specifically asked to cite using another style.