College consultants are good for helping students strategize, to figure out the best way to present themselves, etc. Most college consultants, despite the claims of many, are not qualified to evaluate an essay, much less tell you what would help make it better.
Like @teleia’s kid, my kid wrote her essay as part of her AP English class (I don’t remember which), and she was also helped by her old Honors English teacher (for whom she also was a TA).
The best people to help you with your essay are, indeed, your English teachers. Among other reasons, because they are teaching you, not coaching you, and they know what a high school kid’s essay looks like, and will help you work on your essay, without it losing your voice.
So approach your favorite English teacher, and ask them whether they could help you.
All that being said, the point of the essay is not to see whether you can produce an award winning piece of work, which could be published. While they do want to see that you know how to express yourself in writing, they would not have Introductory Composition as a required course if they already expected you to be a great writer. They mostly want to see who your are, and what you can bring to the college. You are writing a letter introducing yourself.
That is why the topic of “how I overcame adversity” is such a weak topic. You are supposed to be showing them who you are, not telling them about things that happened to you.
In fact, one of the best things that your English teacher can do for you is to keep you on the “show, don’t tell” track.
BTW, don’t believe the hype about needing a “winning college essay”. As I wrote - if they expected you to be able to write at that level, there would be no required intro to composition class. The lists of the best essays are the top ten essays of the 2,000 or so students who were accepted, and are not that typical of the essays that they are getting.
I’ve known many Ivy graduates who could to write themselves out of a wet paper back, even if they were using a sharp pencil. There is no way that their applications essay were more than passable.