Starting high school in Stockholm, Sweden tomorrow. Gimme some advice?

Well tomorrow is my first day at an actual school in Sweden and I’m honestly rlly exited but also kinda nervous. For some background I’m black and I’m from the US and I honestly don’t know what to expect. I know that Stockholm is a very diverse place but I’m going to a pretty white school. Anyways what should I expect. Any advice would be great!
Starting high school in Stockholm, Sweden tomorrow. Gimme some advice?
Post Opinion