No clue what this is to like but as a single alone in Brazil I would be scared nor survive longer than a day before they found my body parts among the the streets.
Lol, it is a bit too cliché, you can survive in Brazil, but yeah especially in big cities like RJ or SP you have to adopt a new routine/attitude for sure..
As I said I never lived daily there, only 3months in 2021, and 2 months last year.