Sharing my thoughts after having done Math Academy consistently for almost a year now as a university student. I've tried the following courses: Calculus 1, Calculus 2, Multivariable Calculus, Linear Algebra, Methods of Proof, Discrete Mathematics. Let me know if you have any questions :)
Here are the sources for the graphs used in the video:
Math Academy: How our AI works
You Are NOT Dumb, You Just Lack the Prerequisites from lelouchdaily