If your grades are great, go for it! You can always major in music your undergrad years and go into med school... That's an option if you don't want to give music up. Honestly, being a musician is a great dream to have but realistically, it's just a hobby.
This proposition is outrageous. It's not even a war yet. The US has not declared war, neither has the NATO forces. It is just a battle for now. It can't be fake. The only reason why there is no definite rebel leader is because they are not organized and rogue, separated forces. Time will tell.
You're ridiculous. Talk to an adult and let them know what is going on. Obviously, if an adult knows about it, they will be aware of your situation and your 'self-defense' will actually play out.