You know more about yourself than you know about anyone else. You might know more about yourself than you know about everyone else put together. But how well do you know yourself, rather than know about yourself? That is, how well do you understand yourself rather than just know facts and details about yourself, why you are who you are and why you do the things you do, rather than just what you are and what do you tend to do? The former, most will probably find much more challenging to articulate, despite a lot of information available to the latter that is like data to support the former, but that may be difficult to interpret to articulate the former.
How often do you intentionally get yourself into things about which you don’t know much? And how have they generally turned out? Do you seriously wish you would get yourself into things about which you didn’t know much more or less often? There isn’t a right or wrong answer to any of those questions. You are who you are, although if you seriously wished you would get yourself into more things about which you didn’t know much, you might want to plan on how you’ll make that happen as it won’t likely happen on its own.