Here’s what I commonly observe: the students who struggle in technical courses are those who skip the insight-developing phase. They capture concepts in their notes and they study by reproducing their notes. Then, when they sit down for the exam and are faced with problems that apply the ideas in novel ways, they have no idea what to do. They panic. They do poorly. They proclaim that they are “not math people.” They switch to a philosophy major.
Without insight you can’t do well.