Escape society to live with my best friends? Yes.
By doing this, you just made yourself the laughing stock of the Blockland Forums. Good luck on missing out on high school and college, because that precious 1 year of studying law isn't going to help you when you run a defenseless nation.
Think about the cost of buying an island which costs a stuff-ton of money. Where are you going to get the resources to feed you and your population or the materials needed to construct buildings? Do you know how to build a car or make gasoline for it to run? Is your military even capable of fighting? Do you even know how a gun is made?
These expectations will require certain degrees in chemistry, engineering, mathematics, science, economics, etc. You're in
middle school, which means you're significantly too young and inexperienced for this type of thing. If anything, it's going to end up like Lord of the Flies, but even worse. You and your nation will either die off due to starvation, disease, or by an invasion of another military kicking your ass and spitting in your general direction.
In other words, pulling off this kind of stunt is going to get you killed either way.