I am not 100% sure what you mean by admissions consultant but I think I know, correct me if I am wrong though. When I was in high school I hired a private college counselor type person to help me through the process, revise my essays and things of that nature. Is that what you mean?
If it is, then my personal recommendation is I wouldn't do it. I still am angry that I hired the person I hired just because I got little out of it. If you are on this board you have access to most of the information they would be able to give you anyway, and once you understand the process and what the schools are looking for it isn't that confusing of a process...you just know that match is everything (or close to it).
As for your essay, if your school has a writing center schedule an appointment and take it over there. I went over it with a freshman, which really was kind of pathetic when you think about it, but it still helped. I also had it go through revisions by four different professors before I came up with my final draft. These options are available to you for free, and I think professors would know what schools are looking for better than a generic college counselor.
Lastly, assuming you have a mentor of sorts at your current school, be sure to ask them lots of questions and find out what they look for in a student. Again, they are closer to the process and they will not lead you wrong whereas someone who is generic and isn't as focused on psych might. Also, if you still don't know, feel free to bounce it off us on the board. We at least will give you our $.02, though as my subname says, take it with a grain of salt
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