My chances at The Coast Guard Academy?

While making my schedule for next year, my senior year of high school, I mentioned to my counselor that CGA was my top choice. She then went on to say that it would nearly be impossible for me to get into the school which really lowered my self confidence in attending the school. I have a 90 GPA, will have taken five AP’s and three honors classes by the time I graduate, I scored an 1820 on the old SAT, I played JV basketball for two years and now hold a state record for weightlifting, have hours of community service at a variety of different locations, and I’ve also attended Georgetown and the United Nations for law/poly-science related programs. I consider myself to be a fairly strong candidate for the Academy as a female aspiring to be a government major at the college. Is my counselor right, is what I’ve done not enough? How can I make myself a stronger applicant? Thank you so much in advance for all of your advice!!