Thanks for the advice. I go to a top500 HS and all my peers seem to spend half the effort to get higher grades than me, and it seems I need to push myself harder in terms of the difficulty of the mathematics practice I do.

Side note: I used to think that the solution was expensive tutoring, but after attending a few tutoring sessions with little benefit, I slowly realized that tutoring (at least in my area) is for the unmotivated student who needs to be pushed by someone else. Just wanted to share my experience and say that it’s almost never the expensive prep classes that make a successful student.