A good starting point to achieve true self awareness, is to look at the traits and habits you despise in others and realise they are the traits you despise in yourself projected outward.
This is a first step to being honest with yourself.

I understand your question. Were you high when you wrote it? Is that why you were thinking about the 'space'?

Space and time coexist and without bodies, you can't measure space or time. I hope this clears it up for you.

Are ... aware of the space between who you ... and who you think ... ... ?

Overly.
But then sometimes I think the more aware we think we are the more wrong we might actually be

I lean toward the idea that our true self is something we all have in common, and that the individual selves are illusions.

It's the form of dissociative identity disorder that we all have. These days I'm pretty amazed when I encounter someone who at least appears to act and be who they really are. The kind of person who doesn't have a very filtered way of interacting with people. I feel like a lot of people would claim someone is "on the spectrum" when the gap is very small.

I thinks I am who, wherefore, who am i?

If I was aware of this gap, wouldn't it disappear?

Always. All of social life and learning is about trying to understand that gap. "Know thy self." Plato.