World's Outsider

Maybe you're wondering what "world's outsider" is supposed to mean. Well, you see i'm a TCK (third culture kid) with mental issues. I'm a US citizen but not American. I'm not exactly Korean either and not exactly Albanian, though i've lived here almost all my life. It's difficult to fit in with everyone else, including fellow MKs. Well, none that i have met so far.
Thus comes, world's outsider...
and yes, it sounds depressing xD

so, just as a simple explanation