Personally I think it would have been much more educative if your mom made you work hard to pay for the damage.
I am not talking about sending you to work in the mines
But a very hard home chores routine or something similar would have forced you to accept in a more positive way that actions always have consequences.
But what's done is done now, let's all hope that Kia will have a wonderful life and let's protect the windowsill from future attacks!