Living somewhere all your life makes you of that continent? I don't think so, your race is where your ancestors are from, not where you live.
Good for you Toto, good for you. Be what ever race you want to be in your multi-racial background, I'm sure you can get an easy visa or citizenship there because you're an ex-patriot of there, and I'm sure you can blend in easily. Just find somewhere you feel happiest in and stay there.
Anyway who cares what race you are? I don't. Do I care if someone is from France or America? No. They can be from under the sea and I really don't care, because we're all from the same DNA in the sea. And even if you don't take evolution as our cause for existance, we all come from the same man and woman, Adam And Eve.