Since, October 2020, I have been studying proof theoretic mathematics under mentorship of Yaashaa P. Golovanov (a mathematician) at his premier program AMMOC - an international math circle. With him, in addition to my successful Olympiad preparation, I have been learning very advanced mathematics : Analysis, Abstract Algebra, Galois Theory, Linear Algebra & Multivariable Calculus (at level of Harvard 55 Course). 

None of this would ever would have been possible without endless hours of mathematical discussion, learning, researching under my mentor.