The most trouble I’ve had when writing essays has been staying on topic. I’m good at giving detail and elaborating, but I always tend to stray a bit off topic, or misinterpret a prompt. And since I try to drive my points home, my whole essay ends up sometimes talking about something entirely different from the prompt.
I’ve also struggled with the structure of essays. I haven’t been able to hit certain points in the middle of rhetorical analyses. I like to have examples, or clear rubrics of what points are to be hit, and what structure the essay must be conducted in.