Mhm, understandable. But incase you do decide to try it, please keep in mind that serbia may have the same rule as the USA does. Which is proof that you have a flight home. But considering some of my friends are serbians, and the idgaf attitude their government has, I doubt they care :<
And I saw you mention it earlier, that you also needed money for activities. The way we did it was that we both saved a bit of money for dates, which makes it a lot easier and splits the cost in half ^^.
I hope things work out for you and that you can soon take your flight, hehe. Best of luck ^^