As others have said posting a video is a very cheap thing when many would think you would have explained it in the blog form. The title tends to leads people to believe that you are answering the question on lichess. I don't mean any hate but saying "Eventually, as I improved, I realized that having a solid opening repertoire for both colors was crucial for advancing to higher levels." is a very useless statement, Like who would have guessed you need opening's for black and white in high levels. Also who would have guessed you need to "Choose Specific Lines to Play" when building an opening repertoire, like thanks captain obvious. I think you should add more specific and relevant information instead of stating the very basics of building an opening repertoire and more specific information.