Your profile? Not in my opinion.
Your applications? Yes.
Go through the colleges on your application list and read their About Us sections and any other locations where they talk about their mission, values, and goals. Look to see how you are a fit for the institution, and then think about how to include that in your writing supplements for that particular school.
When you get to the highly-rejective colleges (which comprises most of your list) and highly accomplished students (like you), it’s not about saying how great the college is or how great you are. It’s, at least in part, about showing how you understand what the school is about and how you’re a great fit for that and what’s unique about you that’s going to help further their mission/goals.
ETA: Regarding the fact that you call yourself “average,” you may want to read this post that talks about high achievers using this type of language.