Or everyone starts telling them that they aren't the type that they actually are because they are not acting in accordance to everyone's stereotypical view of said type.
thinking, with, cognitive function (Ni). it's the process that doesn't seem right, and the way the words fall and scatter on the page. communicating with N dom types feels like e.s.p., or, at the very least, secret sign language. when it doesn't feel like this, we all pause, scratching our chins and get all like- wtf?
and infjs are no more of a mixed bag than any other type. a larger proportion of the population of infjs feels like wasted potential. this is bc Ni can be complacent and reject new information, and bc many infjs feel defective socially. but infps, intps, too, have similar concerns, and are probably burning out and wallowing in their own self-flagellation just as much. we all fucking hate it. the distance from mediocre to great is pretty much the same in all of these types (which are probably 3 of the most wasted types overall, or feel the greatest disparity between what they do and what they feel they are capable of doing, leave more of themselves out of the world in their own private interior).
enfps and intjs, i find, at times, should hold out and wait for something bigger and better than what they are currently working on. but, being far from any great american story of success in my own autobiography, who am i to nit-pick. i also know a couple entjs and enfjs who could do something really great, but can't see themselves well enough to use their skills in their best capacity.
nfs also often have this frustration at feeling like others don't realize or respect their intelligence. infj is so vague and ambiguous, their thinking gets completely swallowed up by the fog between their eyes and mouth. infp just can't get it organized, at least until it develops sound methods or it just keeps shooting every time for a hole-in-one. enfp is just crazy and silly and forgetful, their scatterbrained-ness undermines the fact that they work for their understandings, and that there's an underlying reason they're a natural at almost everything. enfjs are so showy, their presentation prevents others from recognizing their inner complexity. the holism makes it difficult to present ideas in the form that has commonly been considered intelligent, organized, and correct throughout history.