changes

I'm 13 years old, I live in the south of Brazil, my mother lives in Portugal, my father in the north of Brazil, and my older brother in São Paulo, my mother wants me to go to Portugal, but I honestly am undecided, because I have friends here in the south, I don't want to leave them, but, on the other hand, it's Portugal, I may never have this chance again, I need a direction, help me please, I accept all help :)