Perhaps the most notable characteristic of The High Priestess is their affiliation with intuition. I've long struggled with the concept of intuition (just as I was never great with manifestation), perhaps because I was overly eager or simply missed the experience altogether because my expectations were too high (you know, that whole "a watched pot never boils" kind of thing). Tarot has helped me understand a lot about intuition, and my study of Human Design has also taught me that some people are better guided by intuition and others by instinct. My Human Design chart tells me I have "splenic authority," which tells me I do better in trusting my immediate instinctive responses to situations rather than needing time to evaluate and process an intuitive suggestion. The alternative would be someone with a "sacral" authority, who fares better making decisions based on intuition.
Of course, just because you lean to one side does not mean that you do not have one skill or the other; it is not a black-and-white trait. It takes work, but it is possible to open yourself to intuition, even if it is hard to come by.