At what age can you tell someone's personality? At how young? From the start? People say my personality fluctuates so much that's it's impossible to tell who I am because I'm still growing. Is this true? Or is it usually more of a factor of stress? Or is there a certain type where this becomes more true. I mean I believe it could be anything including the fact that maybe my environment doesn't suit my personality? Because I haven't been able to figure my type out for a while, after studying the cognitive functions.
Does everybody know themselves well enough to determine their own type as well?