The ability to BE who you are is essentially the same as the ability to feel who you are. Being able to describe, in however much detail, who you are–which is the chief virtue taught in most forms of psychotherapy–is quite distant from this ideal, and tends away from, not towards it.
In my own case, I have consumed countless books telling me what to do. But what has always been missing is a sense of who it was who might consent to do these things. Until you are one, you are two or many. This is a complexity which is impossible to make sense of. One can walk on two feet. Many cannot walk at all.