I sound like an idiot when I try to explain myself to people

Obviously, everyone wants other people to see them in a specific way. That's why they act the way they do, dress the way they dress, say the things they say. It's they way they present themselves to the world.
Sometimes, I think I don't do a very good job of expressing myself. Sometimes, I don't act the way I want to act, say the things I want to say.
I'm not sure if other people have the same image of me as I do.

All in all, I think I know myself pretty well.
And sometimes, I wish someone else in the world would or could know me just as well. So I try to explain.
Everything makes sense in my head. But then, when I try to explain it to someone, I almost always fail miserably. I tend to get halfway through an explanation, decide I'm not articulating something correctly and give up. I wave my arms like an idiot, say "I dont know" a few times and that's that.

I fear it makes me sound like an idiot, or worse, like I'm trying to be different and deep and mysterious. Damn it.

Then I get reminded of this quote:

“I can never say what I want to say,” continued Naoko. “It’s been like this for a while now. I try to say something, but all I get are the wrong words - the wrong words or the exact opposite words from what I mean. I try to correct myself, and that only makes it worse. I lose track of what I was trying to say to begin with. It’s like I’m split in two and playing tag with myself. One half is chasing the other half around this big, fat post. The other me has the right words, but this me cant catch her.” 

― Haruki Murakami, Norwegian Wood  

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