You really think you can run a nation off of 2 acres of land? lol
It would be the most boring island ever. You have no room for buildings, a courthouse, or more than one house.
You'd end up living in side-by-side straw huts that wash away when the tide rolls in, lol.
I understand you're a kid, but this simply isn't realistic. No country will trade with a 2 acre island run by children.
By the way, putting in that much sand will cost millions. You're acting like it's easy work. Plus, you're less than 10% finished because you think that making a space program, a government, trading, buying/making land, and all of the other things are easy.
Also, why do you present yourself as a genius? The IQ tests you took were most likely crappy ones on the internet that give everyone genius scores.