Have any of you ever self studied the undergraduate curriculum by yourself with just textbooks? Anyone? I'm a geophysicist that is planning to self study a standard undergraduate curriculum of pure mathematics, I already have researched, selected, and organized the textbooks needed in the order I go through them to fully count as a standard bachelors degree curriculum in mathematics.

Since so many people on this board say they self study math and the sciences, in reality, how many of you actually were capable of doing self study? Even if it was only 1 textbook of self study.