As an aside, I met someone who did well in math up to calculus but then struggled. Later in life he was working with a method called the Feldenkrais method, which works with mindfulness and organization of movement in general. There is a subset of Feldenkrais that deals with vision. He discovered that his vision was jerky and that when he was reading a calculus book, his vision would tend to jump past equations and parts of the text he didn't understand. He worked with this habit until he was able to gaze more directly at equations. Lo and behold he quickly gained an understanding of calculus.
I also know a mathematician who talks about mathematical intuition. This is something not all that clear in regular math teaching, I find. Math is usually taught as a strict subject. And proofs or answers to problems must be absolutely strict and correct. But what of the search for an answer, the *intuiting* of an answer? Well, this mathematician said his advisor told him to use every trick in the book. You can use visualizations, you can chant, you can throw chicken bones on the ground, whatever. Anything and everything is fair game in developing your intuition for a subject matter. A lot of times, intuiting the solution comes first. Only later is the strict solution worked out.