I have always been the number 1 mathematics student in my school.
Once one is applying for post-graduate study, it's time to quit bragging about primary school accomplishments.
I have taken fundamental courses like Mathematical Analysis, Advanced Algebra, C++, and Database
as well as advanced courses like Probability Theory, Operations Research, Numerical Analysis, Discrete Mathematics, Information Security and Cryptology, and Operational
S ystem
s .
My dream is to become a distinguished statisticist.
Where is the university to which you are applying? Perhaps they use the term you are using elsewhere, but in the United States, the term you want is "statistician."