It's time to unlearn many of those high school writing habits. They just don't exist anymore in college.
In high school, you might have learned to start every paragraph with the main point and end every paragraph re-stating the main point. That's not the case in college. You have much more freedom to write in the way that serves your ideas and argument.
College professors want you to think critically and write persuasively. Here's a cheat sheet to help you shift into college writing gear.
Word to your flocker.