The mock exams are coming up and Shun is worried about his future.  Some of his friends are easy going about the test while others are serious about it.  He feels stuck in the middle without a clear direction.
Don't make such a fuss over 
what's on a person's head.
No hagas un escándalo por lo que 
tengan las personas en su cabeza.
Não fiquem tão alardeados com 
a cabeça de uma pessoa.