However, it was only in graduate school when I learned to apply myself academically, and that was by thinking of complex math and chemistry formulas as shooting free throws.
I saw that doing these equations over and over was the only way to get better at them, and it definitely worked for me.
OvercomingBias mentions a study similar to what I found about math work: Only Do Math Homework
...we find that math homework has a large and statistically meaningful effect on math test scores throughout our sample. However, additional homework in science, English and history are shown to have little to no impact on their respective test scores.